Please help!! Use the following image below to answer Questions 30 and 31.
30. The structure labeled "B" is pointing to chambers that contain a cell. What is the name
inside this chamber?
A.
B. Osteoblast
C. Osteocyte
Chondrocyte
31. The structure labeled "E" is called:
A. Interstitial lamellae
B. Circumferential lamellae
C.
D. Osteocytes
Central Canal
Answers
The structure B is an Osteocyte
and the structure E is called Central canal
so the correct options are
30. C
31. C
The image is of an Osteon of a compact bone
An Osteon refers to the structural unit of a compact bone.
The Osteocyte is a bone cell which is doing in spaces within lamellae known as lacunae
They play a major role in Bone growth and metabolism as it has both growth promoting activites ( by secreting growth factors) and growth inhibiting activites ( by secreting sclerostin )
Central canal or Haversian Canal as they call it is a series of microscopic canals found in bone. They contain all the vessels ( generally capillaries ) and nerve fibres thus providing nutrition and sensation to bone. Two adjacent Haversian canals are connected by a Volksmans channel
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The structure labeled "B" in the image is pointing to chambers that contain cells, and the name for the cells inside this chamber is Osteocyte. The structure labeled "E" in the image is called the Central canal.
The main structural component of compact bone tissue is the osteon, commonly referred to as the Haversian system. It is responsible for giving bones their firmness and strength. Each osteon is a cylinder-shaped structure made up of several parts.
Central CanalLamellaeOsteocytesCanaliculiInterstitial LamellaeCircumferential LamellaeTogether these parts form the osteon, which is a solid and well-organized structure within the dense bone tissue. This configuration makes it possible for bone to support, exchange and maintain itself effectively. Under a microscope, compact bone has a distinctive appearance with a concentric ring-like structure due to the presence of osteons.
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Related Questions
What do we know about the coding of mRNA that makes E. crassus the exception to the rule of protein synthesis?
Answers
Answer:
UGA is the codon in the mRNA that makes E. crassus the exception to the rule of protein synthesis, that is: insertion of gene for synthesis of two different proteins.
......................................
Answers
Answer:
The answer are
removal
absorb water /rapidly
atmosphere
fertile /erode
The Vi antigen found in?
A-Staphylococcus
B. E coli
D- Citrobacter
C-Streptococcus
Answers
B. E coli
Which strand of mRNA would be made during transcription using the DNA strand shown below GTTACC
Answers
Explanation:
Transcription is a process in which an RNA Polymerase (enzyme) "reads" a template strand of DNA in the 3'-5' direction*, creating an antiparallel RNA strand from it.
* Even though the template strand of DNA is read in the 3'-5' direction, the RNA that is being synthesised is in the 5'-3' (as to follow anti-parallelism).
Both DNA and RNA are constituted by nitrogenous bases, amongst other things. The letters in the sequences we're working with here represent nitrogenous bases.
DNA has the follow nitrogenous bases:
Guanine (G), Cytosine (C), Thymine (T) and Adenine (A), which pair-up as G-C and T-A.
RNA is similar, but with a slight difference:
Guanine (G), Cytosine (C), Uracil (U) and Adenine (A), which pair-up as G-C and U-A.
Since no direction indicators are given, we'll just read the DNA sequence from left to right:
GTTACC
| | | | | |
CAAUGG
Answer:
CAAUGG
helppppppppppp
.............................
Answers
Unit 1: Biomolecules
1. Carbohydrates: Food is____ Digest into____
2. Lipids: Food is______Digest into____
3. Proteins: Food is_____Digest into_____
Answers
2. Lipids: Food is digested into fatty acids and glycerol.
3. Proteins: Food is digested into amino acids.
Choose the clause that would be used to decide each case.
1. A religious high school wants to receive government funding.
2. A state passes a law that bans a form of worship used by a religion.
3. A religious organization does not pay tax on religious items.
4. A city government building installs a sculpture promoting a specific religion at its entrance.
Answers
The clauses that would be used to decide each case are:
Free Exercise ClauseEstablishment ClauseWhat are these Clauses?Establishment Clause. The government cannot establish a religion or favor one religion over another. Therefore, the government cannot fund a religious school.
Free Exercise Clause. The government cannot interfere with the free exercise of religion. Therefore, the state cannot ban a form of worship.
Establishment Clause. The government cannot tax religious items. However, the government can tax religious organizations on their non-religious activities.
Establishment Clause. The government cannot promote a specific religion. Therefore, the city government cannot install a sculpture promoting a specific religion at its entrance.
The Establishment Clause and the Free Exercise Clause are two of the most important clauses in the First Amendment. They protect the right to freedom of religion, which is a fundamental right in the United States.
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The Establishment Clause and Free Exercise Clause of the Constitution would be used to decide the cases involving a religious high school wanting government funding, a state passing a law banning a religious practice, a religious group not paying tax on religious items, and installation of a religious sculpture in a government building.
Explanation:The following constitutional clauses would be used to decide the respective cases:
Establishment Clause and Free Exercise Clause: A religious high school wanting to receive government funding would involve an analysis of the Establishment Clause (which prohibits the government from making any law 'respecting an establishment of religion') and the Free Exercise Clause (which reserves the right of American citizens to accept any religious belief and engage in religious rituals).Free Exercise Clause: A state passing a law that bans a form of worship used by a religion would be likely examined under the Free Exercise Clause, which guarantees the right to practice one's religion free of government interference.Establishment Clause: A religious organization not paying tax on religious items would be subject to the Establishment Clause, or perhaps statutory tax law.Establishment Clause: A city government building installing a sculpture promoting a specific religion at its entrance would also fall under the scrutiny of the Establishment Clause, as it suggests the government is endorsing a particular religion.Learn more about Constitutional Clauses here:https://brainly.com/question/31866476
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The Diploid form in a plant life cycle is called what
Answers
The Diploid form in a plant life cycle is called sporophyte.
Sporophyte explained.
The sporophyte is the diploid, multicellular stage in the life cycle of plants. It is responsible for producing spores through a process called sporogenesis. Sporogenesis occurs in specialized structures called sporangia, which are typically locatted on the sporophyte. The sporophyte undergoes meiosis, a type of cell division, to produce haploid spores.
These spores are released from sporangia and dispersed into the environment. Under suitable conditions, the spores germinate and develop into gametophyte, which is the haploid stage of the plant life cycle. The gametophyte produces gametes through mitosis.
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critically discus 1 community responsibility to ensure healthy and clean environment
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One community responsibility to ensure a healthy and clean environment is waste management.
Proper waste management practices are crucial for maintaining a clean and sustainable environment. Here are some critical points to consider:
Reduce, Reuse, and Recycle: Communities have a responsibility to promote and educate their residents about the importance of reducing waste generation, reusing items whenever possible, and recycling materials.
Proper Disposal of Hazardous Waste: Communities should establish systems for the safe disposal of hazardous waste, such as chemicals, electronic waste, and medical waste.
Waste Segregation and Composting: Encouraging residents to segregate their waste into different categories, such as recyclables, organic waste, and non-recyclables, helps in effective waste management.
Thus, it's important to note that ensuring a healthy and clean environment is not solely the responsibility of the community but also requires government support, adequate infrastructure, and regulatory frameworks.
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What is bacteria most resistant to radiation?
A-proteus
B-Alternaria
C-streptococcus
d- lactobacillus
Answers
Answer: The answer will be different.
Deinococcus radiodurans is most resistant to radiation.
uranary system in human
Answers
Urinary system remove waste product from body and regulate blood pressure.
Urinary system is also known as renal system.Urinary system in human consist -
KidneyUreters Urinary BladderUrethraKidneyThese are two in number.Kidney form urine by filtering the blood.Both kidney are situated in vertebral column.Each kidney is surrounded by three layer of tissues.These are deep red bean like structure.Nephrons are the structural and functional unit of kidney.UretersFrom oncase surface of kidney tubes like structure come out which is known as ureter.Each you readers coming out from each kidney pours the urine into urinally bladder.Urinary BladderIt is urine storage organ.The urine passes from kidney through ureters into sac like urinary Bladder.UrethraUrethra is tube like structure through which urine is passed from urinary bladder to outside the body.Some other urinary system
SkinLiverLungsLarge IntestineSalt glandHope its helpful
how to Plasmid DNA is also used to monitor bacterial transformation with foreign DNA.
Answers
Plasmid DNA serves as a valuable tool in monitoring bacterial transformation as it allows for the easy introduction and expression of foreign DNA in bacterial cells, providing researchers with a means to study and manipulate genes of interest.
Plasmid DNA is commonly used as a vector in molecular biology experiments, including monitoring bacterial transformation with foreign DNA.
Here's a general overview of how plasmid DNA is utilized to monitor bacterial transformation:
Selection of Plasmid: Choose a suitable plasmid that contains a selectable marker, such as a gene for antibiotic resistance. This marker allows for the identification and selection of transformed bacterial cells.
Insertion of Foreign DNA: The foreign DNA fragment of interest is inserted into the plasmid using molecular cloning techniques. This can be done by cutting both the plasmid and the foreign DNA with specific restriction enzymes and then ligating them together.
Transformation of Bacteria: Bacterial cells are made competent, meaning they are treated to increase their ability to take up foreign DNA. The plasmid containing the foreign DNA is then introduced into the competent bacterial cells, typically by heat shock or electroporation.
Incubation and Selection: The transformed bacteria are plated onto a growth medium containing the appropriate antibiotic that the plasmid carries resistance to. Only the transformed cells that have successfully taken up the plasmid will survive and form colonies.
Analysis: After incubation, the resulting bacterial colonies are analyzed to confirm successful transformation with the plasmid containing the foreign DNA. This can be done through various techniques such as PCR, restriction digest analysis, or DNA sequencing.
By monitoring the growth of bacterial colonies on selective media, researchers can determine the efficiency of the bacterial transformation with the foreign DNA. The presence of the selectable marker (e.g., antibiotic resistance gene) in the plasmid allows for the identification of transformed bacterial cells, while the absence of growth in non-transformed cells indicates that they were not able to take up the plasmid.
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In a pond ecosystem, fish release ammonia as an excretory product, which is highly toxic.
Ammonia can make water unfit for the survival of the fish and other aquatic organisms.
However, in nature, the level of ammonia in ponds is generally maintained at low levels.
What helps in maintaining the level of ammonia?
O
Ammonia is converted to elemental nitrogen by bacteria present in the root nodules
of water plants.
Ammonia is converted by bacteria into nitrogen compounds that can be consumed
by plants.
The salts in pond water react with ammonia, causing it to settle on the bottom of
the pond.
The leaves of water plants absorb ammonia, removing the toxic substance from the
pond water.
Answers
The statement "Ammonia is converted by bacteria into nitrogen compounds that can be consumed by plants" describes how ammonia in ponds is generally maintained at low levels.
What is ammonia?Ammonia, an odoriferous colorless gas, represents the most elementary and enduring fusion of nitrogen and hydrogen. This ubiquitous nitrogenous byproduct, predominantly found within aqueous organisms, plays a pivotal role in satiating the nourishment requirements of terrestrial life forms.
Notably, it serves as a foundational building block for an astounding 45% of the global food supply and fertilizers, thereby exemplifying its paramount significance.
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how do soil negatively affects landforms,plants,animals and humans?
Answers
Explanation:
increased pollution and sedimentation in streams and rivers, clogging these waterways and causing declines in fish and other species. And degraded lands are also often less able to hold onto water, which can worsen flooding
Answer:
The effects of soil erosion go beyond the loss of fertile land. It has led to increased pollution and sedimentation in streams and rivers, clogging these waterways and causing declines in fish and other species. And degraded lands are also often less able to hold onto water, which can wo
Explanation:
These rays penetrate to the depths of food?
A- Infrared Ray
B- Y-Ray
C- U.V. Ray
D- U.V. Ray and Y-Ray
Answers
UV radiation is only one type of EM energy you may be familiar with. Radio waves that transmit sound from a radio station’s tower to your stereo, or between cell phones; microwaves, like those that heat your food in a microwave oven; visible light that is emitted from the lights in your home; and X-rays like those used in hospital X-ray machines to capture images of the bones inside your body, are all forms of EM energy.
UV radiation is the portion of the EM spectrum between X-rays and visible light.
how can you start preserving the gift of nature which you can apply in your day-to-day life?
Answers
Preserving the gift of nature is crucial for the well-being of our planet and future generations. By making sustainable choices in your day-to-day life, you become part of the solution for preserving the gift of nature and creating a more sustainable future.
Here are some ways you can start incorporating sustainability practices into your day-to-day life:
1. Reduce, Reuse, Recycle: Implement the three Rs in your daily routine. Minimize waste by reducing your consumption, reusing items whenever possible, and recycling materials that can be processed into new products. This helps conserve resources and reduces the amount of waste that ends up in landfills or pollutes natural environments.
2. Conserve Water and Energy: Be mindful of your water and energy usage. Turn off lights and appliances when not in use, use energy-efficient appliances, and opt for natural lighting when possible. Conserve water by fixing leaks, taking shorter showers, and using water-saving devices. Conserving these resources helps reduce the strain on ecosystems and decreases greenhouse gas emissions.
3. Choose Sustainable Transportation: Opt for greener transportation options. Walk, bike, or use public transportation instead of relying solely on private vehicles. If you must drive, carpool, or choose fuel-efficient vehicles. By reducing your carbon footprint from transportation, you contribute to mitigating air pollution and reducing greenhouse gas emissions.
4. Support Local and Sustainable Products: Purchase products from local farmers' markets and businesses that prioritize sustainability. Choose organic, fair-trade, and sustainably sourced products whenever possible. This supports local economies, reduces the environmental impact of long-distance transportation, and encourages sustainable practices in agriculture and production.
5. Engage in Nature Conservation: Participate in activities that directly contribute to nature preservation. Volunteer for local environmental organizations, join clean-up initiatives or support conservation projects financially. By actively engaging in these efforts, you directly contribute to the preservation and restoration of natural ecosystems.
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true or false in natural selection individuals whose unique characteristics are well suited for an environment tend to survive and produce more offspring
Answers
Answer:
True
Explanation:
Answer:
True
Explanation:
Natural selection allows for individuals to pass down helpful characterics or genes to their offspring to ensure the survival of a species. For example, giraffes used to have much smaller necks but a few were slightly longer. The giraffes with longer necks survived at greater rates than the ones with normal necks because it was easier for them to reach leaves. They passed the longer neck genes into their offspring, who also had an easier time getting food. The result was giraffes ended up having long necks because it increased their survival while the short neck giraffes died out because that gene was a disadvantage to them. There can also be genes that are no longer needed for a species but it doesn't impact them whatsoever. Mutations can cause various genes to appear in a species which can be either helpful, neutral, or harmful. If it is harmful, the mutated individuals will likely die out and the mutation will not be passed on to future generations.
explain these concepts in your own words.
1.1 classifying practical activities
1.2 what is needed for practical sciences in the classroom.
1.3 classroom versus laboratory.
1.4 equipment for practical sciences in the classroom.
1.5 practical sciences on a shoestring budget.
1.6 washing up, tidying,maintainance and the role of learners.
Answers
To explain such required concepts about practical sciences in the classroom and laboratory in your own words, you can think back to your educational experience and do research on both to form your own ideas and opinions.
How can we explain each concept?Starting with question 1, we can classify practical activities as ways of organizing tasks and educational exercises systematically and based on their nature.
For the practice of science in the classroom, it is necessary to have elements and equipment that help in the understanding and learning in an effective way, therefore, such practices are often indicted in a specific laboratory with safety equipment, containers, tools and materials suitable for the experiments. , reactions, etc.
Therefore, practical sciences with a shoestring budget, for example, can be developed through observations of natural phenomena, simple scientific experiments, etc., where students have the role and responsibility of assisting the teacher with the organization of materials in a safe way, developing social skills in addition to educational ones.
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Effective
Enzyme Temperature
Range (C)
A
B
с
D
60-80
30-40
20-38
20-27
Optimum
PH
A. Decrease the pH with the addition of an acid
B.
Increase the pH with the addition of a base
C.
Decrease the temperature to 60°C
D. Increase the temperature to 90°C
3
3.5
9
7
Enzyme A is currently functioning at a temperature of 75°C and a pH of 7. According to the
information provided in the chart above, which of the following would increase the rate of
function of enzyme A?
Answers
The rate of function of enzyme A can be increased by decreasing the pH by adding an acid.
What is the effect of temperature and pH on enzyme activity?As the temperature increases, enzyme activity generally increases due to faster molecular movement and higher collision rates between the enzyme and substrate.
However, beyond the optimal temperature for each enzyme, the activity starts to decline rapidly.
Enzymes have an optimal pH range in which they function most effectively. Going beyond or below this pH range can impact the enzyme's structure and alter its ability to bind to the substrate.
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Watch the video titled Rat Park attached below, and then answer the reflective questions outlined below. (Health Psychology) 1. Do you feel Rat Park could work in our society? Why or why not? Explain your answer.
2. How can we begin to change societal perspective on addition?
3. The idea of connection is brought up in the video clip, do you feel that this is an effective strategy to align drug rehabilitation and reduction methods with?
Answers
The Rat Park experiment by Bruce K. Alexander studied how environment and social connections affected rat drug addiction. Giving rats an enriched environment called "Rat Park," with social interactions, activities, and rewards other than drugs, reduced their drug-seeking behavior compared to isolated rats.
What is the Rat Park experiment?The Rat Park experiment highlights the significance of environment and social connections in addiction, but applying this to human society is intricate.
The way to shift societal views on addiction are:
Educate and raise awareness about addiction. Combat addiction stigma by promoting empathy and awareness in society.Prevention and early intervention: Target risk factors and intervene early for at-risk individuals.The importance of connection and social support in drug rehabilitation and reduction methods is emphasized in the video. Meaningful connections foster belonging, support, and purpose for recovery.
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Examples of processes requiring ATP
Answers
Answer:
muscle contraction, for active transport, cell division, transmission of nerve impulses and synthesis of protein
What two variables may affect the results of an investigation of the variety of human traits if kept constant
Answers
Two variables that may affect the results of an investigation of the variety of human traits if kept constant are genetic factors and environmental factors.
Genetic Factors: Genetic variation plays a significant role in shaping human traits. If the investigation aims to understand the variety of human traits, it is essential to keep genetic factors constant within the study population. This can be achieved by focusing on a specific group with similar genetic backgrounds, such as studying traits within a particular ethnic or geographic population.
Environmental Factors: Environmental factors, including both external and internal influences, can significantly impact human traits. These factors encompass a wide range of variables, such as diet, lifestyle, socioeconomic status, education, cultural practices, and exposure to pollutants or toxins.
To ensure the validity of the investigation, it is crucial to control or keep these environmental factors constant among the individuals being studied. This can be achieved by selecting a homogenous group of participants who share similar environmental conditions or by carefully designing the study to minimize the influence of external variables.
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Biology - dormancy/behavior and interpreting graphs
Answers
According to the information in the graph, we can infer that between October and March the squirrel enters hibernation 16 times due to changes in its temperature.
What can we describe from the graph?Based on the information in the graph, we can infer that the squirrel's body temperature drops from 38°C to 10°C on 16 occasions between October and March. This means that there were 16 events in which food was scarce and the squirrel had to go into hibernation.
According to the above, we can infer that between October and March the squirrel hibernates 16 times due to changes in its temperature.
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reasons why science teachers think practical sciences is a good thing.
rubric
identify reasons 4 marks
explanation and practical example 16 marks
Answers
Science teachers consider practical sciences to be a valuable component of science education for several reasons:
Hands-on Learning: Practical sciences provide students with the opportunity to engage in hands-on learning experiences. This approach allows students to actively explore and manipulate materials, conduct experiments, and make observations.
Example: In a biology class, students may conduct a dissection of a preserved specimen to study the anatomy and structure of organisms. By physically dissecting and examining the different organs and systems, students gain a tangible understanding of the subject matter.
Application of Theory: Practical sciences enable students to apply theoretical knowledge acquired in the classroom to real-world situations. By engaging in practical activities, students can bridge the gap between abstract concepts and their practical applications, fostering a more comprehensive understanding of scientific principles.
Example: In a chemistry class, students might perform experiments to understand chemical reactions and concepts like stoichiometry. By actually mixing and observing different substances, measuring quantities, and analyzing the results, students can see how theoretical concepts translate into practical applications.
Development of Scientific Skills: Practical sciences help students develop essential scientific skills, such as critical thinking, problem-solving, observation, data analysis, and communication. Through practical activities, students learn to formulate hypotheses, design experiments, collect and analyze data, draw conclusions, and communicate their findings effectively.
Example: In a physics class, students could design and conduct an experiment to investigate the relationship between force and motion. By planning the experiment, taking measurements, analyzing the data, and presenting their findings, students enhance their scientific skills and develop a deeper understanding of physics concepts.
Engagement and Motivation: Practical sciences often increase student engagement and motivation in science education. Hands-on activities provide a more interactive and dynamic learning environment, making science more interesting and accessible to students. It can spark curiosity, promote active participation, and cultivate a sense of wonder and excitement about the natural world.
Example: In an environmental science class, students may visit a local ecosystem to conduct field observations, collect samples, and analyze the data they gather. By immersing themselves in the real environment and actively participating in the scientific process, students are more likely to be motivated and engaged in their learning.
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What will happen to a cell that cannot produce any proteins
Answers
What will be the equation of a hyperbola that satisfies the given conditions having Foci at (±27,0) and the length of the transverse axis is 4.
Answers
The equation of a hyperbola that satisfies the given conditions is (x - a)² / a² - (y - 0)² / b² = 1.
How to determine equation of a hyperbola?The equation of a hyperbola with foci at (±a,0) and a transverse axis of length 2c is given by:
(x - a)² / a² - (y - 0)² / b² = 1
where a = distance between a focus and the center of the hyperbola, and b = distance between a vertex and the center of the hyperbola.
In this case, a = 27 and c = 4.
Substituting these values into the equation above, the equation of the hyperbola becomes:
(x - 27)² / (27)² - (y - 0)² / (4)² = 1
Simplifying, gives the equation:
(x - 27)² / 729 - y² / 16 = 1
This is the equation of the hyperbola that satisfies the given conditions.
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The _____ is the basic unit of life. Responses A cell B heart
Answers
Answer: The cell is the basic unit of life.
Explanation:
1. Fill in the rest of the table based on the information already there.
2. What is the percentage of heterozygous tasters (2pq) in the class?
Answers
1. The filled table based on the information already there is attached below.
2. The percentage of heterozygous tasters in the class is 39%.
How to calculate percentage?2. The percentage of heterozygous tasters (2pq) in the class:
The percentage of heterozygous tasters in the class is 39%. This can be calculated by taking the number of heterozygous tasters (11) and dividing it by the total number of people in the class (28).
(11 / 28) × 100 = 39%
The percentage of heterozygous tasters in the North American population is 55%. This can be calculated by taking the number of heterozygous tasters (75) and dividing it by the total number of people in the North American population (135).
(75 / 135) × 100 = 55%
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2-Female Drosophila heterozygous for three recessive mutations e (ebony body), st (scarlet eyes), and ss (spineless bristles) were testcrossed, and the following progeny were obtained:
Phenotype Number
wild-type 134 ebony 16 ebony, scarlet 136 ebony, spineless 694 ebony, scarlet, spineless 156 scarlet 736 scarlet, spineless 20 spineless 108
(a) What indicates that the genes are linked? 1 mark
(b) What was the genotype of the original heterozygous females? 1 mark
(c) What is the order of the genes? 1 mark
(d) What is the map distance between e and st? 1 mark
(e) Between e and ss? 1 mark? 1 mark
(f) What is the coefficient of coincidence? 1 mark
(g) Calculate the interference? 1 mark
(h) Diagram the crosses in this experiment. 1 mark
Answers
The progeny includes recombinant phenotypes indicating that the genes are linked. Specifically, the occurrence of the phenotypes "ebony, scarlet," "ebony, spineless," and "scarlet, spineless" indicates that the genes e, st, and ss are on the same chromosome.
These are the recombinant phenotypes: ebony, scarlet (136), ebony, spineless (694), and scarlet, spineless (20).
From the given data, we can observe that the progeny with the recombinant phenotypes account for a total of 136 + 694 + 20 = 850 individuals.
For the map distance between e and st, we need to determine the total number of progeny and the number of recombinant progeny (ebony, scarlet).
Total progeny = 134 + 16 + 136 + 694 + 156 + 736 + 20 + 108 = 2000
Number of recombinant progeny (ebony, scarlet) = 136
Map distance between e and st = (Number of recombinant progeny / Total progeny) * 100
= (136 / 2000) * 100
Map distance between e and st = 6.8 units
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34. The medial border is labeled:
A. 3
B. 10
C. 8
D. 2
Please label the following bones: Talus, Calcaneus, Distal phalanges of the 4th metatarsal