Answers
Related Questions
which two factros determine the density of water
Answers
There are two main factors that affect the density of water, namely, Temperature and Purity.
What are the 2 main factors that control the density of water?There are two main factors that make ocean water more or less thick temperature and salinity. Cold, salty water is denser than warm, crisp water and will sink below the less thick layer. The Density of Water can be explained as: It is the weight of the water per unit volume, which depends on the temperature of the water.
The density of water can also be overripe by temperature. When the same amount of water is heated or fresh, its density changes. The density of seawater can be expanded by reducing its temperature, increasing its salinity, or increasing the pressure. Pressure has the least collision that affects the density of ocean water the temperature of the water and the saltness of the water.
So we can conclude that Water's density is affected by its purity, temperature, and depth.
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Indicate whether natural selection, if it acted alone, could cause changes in the allele frequency(ies) of a population.
Answers
Yes , natural selection if aced alone could cause changes in the allele frequency of a population.
Allele frequency is also impacted by natural selection. The prevalence of an allele will rise if it confers a phenotype that makes a person more likely to live or produce more children.
The distributions of phenotypes can be impacted by natural selection on polygenic features in three different ways: directional selection, stabilizing selection, or disruptive selection.
Gene flow, genetic drift, natural selection, and mutation can all affect the allele frequencies in a population. The four fundamental forces of evolution are known as these. Keep in mind that only mutations can lead to new genetic variations. These variations within and across populations are only rearranged by the other three forces.
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Which of the following groups contributes the most to global climate change according to the Intergovernmental Panel on
Climate Change?
sea life
O wildfires
Ohumans
O birds
Answers
'Humans' contributes the most to global climate change according to the Intergovernmental Panel on Climate Change.
What do you mean by climate?
Climate is the average weather conditions in an area over a long period of time, usually 30 years or more. It includes patterns of temperature, precipitation, humidity, wind and other variables. It is important in determining where and how people live, what plants and animals can survive and how vulnerable species are to changes in the environment.
Humans are the leading cause of global climate change because of the amount of greenhouse gases that are released into the atmosphere as a result of human activity. This includes burning fossil fuels for energy, which produces carbon dioxide, and deforestation, which reduces the amount of carbon dioxide absorbed by plants. Additionally, other human activities, such as animal agriculture, result in the release of methane, another powerful greenhouse gas. As a result of these activities, the concentration of greenhouse gases in the atmosphere has been steadily increasing, leading to a rise in global temperatures.
Hence, Option C is correct.
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Explain why egg and sperm cells are not important to protozoa.
Protozoa are too small to have egg or sperm cells.
Protozoa reproduce through spores.
Protozoa reproduce through the process of mitosis.
Protozoa contain a nucleus, so they do not need egg and sperm cells.
Answers
Protozoa reproduce sexually, asexually, and through genetic interchange. Among the asexual mechanisms, we can mention sporulation. Option B) Protozoa reproduce through spores.
What are protozoa?Protozoa are eukaryotic microorganisms with a nucleus and a cytoplasm. Usually, these are unicellular organisms, however, in some cases, several identical cells compose the individual.
Protozoa inhabit humid or aquatic spaces, being present in fresh and salty water. Many species are parasites.
These cells develop flagella or cilia as a cytoplasmatic extension used to move in aquatic environments.
Protozoa can reproduce sexually, asexually, or through the genetic interchange. They can express
Sporulation (asexual reproduction) ⇒ the original cell produces spores that are capable of surviving unfavorable environmental conditions until they can produce new complete cells.
Gemation (asexual reproduction) Binary fision (asexual reproduction) Bipartition (asexual reproduction) Cell fusion (sexual reproduction)
The correct option is B) Protozoa reproduce through spores.
A) Protozoa are too small to have egg or sperm cells. FALSE. They can produce gametes.
C) Protozoa reproduce through the process of mitosis. FALSE. They reproduce by binary fision and bipartition which are similar to mitosis, but not identicall.
D) Protozoa contain a nucleus, so they do not need egg and sperm cells. FALSE.
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Please can someone help me answer this!!
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Plasma makes up about 65% of blood volume, with the remaining 3% being blood cells. The thick, straw-colored fluid matrix of blood is called plasma. Water, salts, proteins, and dissolved minerals can all be found in plasma.
90% of blood plasma is what?More than half of the volume of blood is made up of plasma, which is 90% water. The remaining 10% of the body is made up of protein molecules, which also include vitamins, hormones, clotting factors, immune system components, and enzymes.
Plasma makes up how many litres of blood?Approximately 45% of the volume of our blood is made up of our white blood cells, platelets, and red blood cells. Liquid plasma makes up the remaining 55%.
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) Igneous rocks form from ____ when it cools.
Answers
Answer:
magma
Explanation:
Answer:
magma
Explanation: Igneous rock forms when magma cools and makes crystals. Magma is a hot liquid made of melted minerals. The minerals can form crystals when they cool. Igneous rock can form underground, where the magma cools slowly.
If gastrulation was blocked by an environmental toxin, then__.
Answers
If gastrulation was blocked by an environmental toxin, then embryonic germ layers would not form.
When an embryo transitions from a one-dimensional layer of epithelial cells (blastula) to a multilayered, multidimensional structure known as the gastrula, it goes through a youthful developmental process called gastrulation.
The three layers of embryonic tissue, or germ layers, are created as a result of gastrulation. These cells will multiply, move, and differentiate during development into the four main adult tissues: epithelial tissue, connective tissue, muscle tissue, and nerve tissue.
The stages of gastrulation in amniotes are as follows: (1) the embryo develops asymmetries; (2) the primitive streak forms; and (3) cells from the epiblast intrude at the primitive streak and undergo an epithelial to mesenchymal transition to generate the germ layers.
Complete question:
If gastrulation was blocked by an environmental toxin, then
A) cleavage would not occur in the zygote.
B) embryonic germ layers would not form.
C) fertilization would be blocked.
D) the blastula would not be formed.
E) the blastopore would form above the gray crescent in the animal pole.
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3. In terms of energy costs to the cells in the proximal tubule, the reabsorption of salt (Na+ and Cl-) and
been called a deal where we get "3 for the price of 1". Explain. (2 marks)
Answers
The reabsorption of salt in the proximal tubule is an energy-efficient process for the cells.
What is reabsorption?
Reabsorption is the process by which certain molecules, ions, and other substances are taken back into the blood from the renal tubules of the kidneys. The substances absorbed in this process include water, glucose, amino acids, and electrolytes. This process helps to regulate the body's fluid balance, electrolyte balance, and blood pressure.
This is because the cells expend energy to reabsorb three ions (Na+, Cl-, and HCO3–) for the price of one. The HCO3– is produced by the same energy-requiring process that reabsorbs Na+ and Cl–, so the cells gain the benefit of reabsorbing three ions with the same amount of energy used to reabsorb just one.
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which of the following statements about treatment or prevention of a prion infection is true?
Answers
There is no known treatment or cure for prion infections. While some prion illnesses are acquired by contaminated food or medical devices, others can be contracted through hereditary transmission.
Other prion disorders manifest with no apparent reason. Prion illnesses are currently incurable. RML researchers are striving to create medicines because there is currently no recognised cure for prion illnesses. Researchers at the NIAID have examined thousands of substances using both cell-free and cell-based assays and have discovered hundreds of chemicals that prevent the development of the abnormal type of prion protein. Prion disorders cannot be cured, however some medications may help them advance more slowly. Despite their increasing and incapacitating symptoms, many diseases are managed medically to keep patients as safe and comfortable as possible.
The complete question is :
Which of the following statements about treatment or prevention of a prion infection is true? Antibiotic therapies such as penicillin are very effective cures High doses of anti-inflammatory drugs such as ibuprofen reduce the symptoms of prion infections.
There is no known treatment or cure for prion infections. Preventative vaccines have recently been shown to be effective in preventing prion infections.
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5 When an animal eats food stays in the stomach for a period of time. When a unicellular organism such as paramecium takes in food the food is stored in which organelle? Vacuole LIGHT BLUE Chloroplast YELLOW Cytoplasm ORANGE
(pls help!!)
Answers
When a unicellular organism, like Paramecium, gets in food, the food is contained in Vacuole organelle.
What is unicellular organisms?A single cell tries to make up an organism, which is called as a unicellular organism. This means that all aspect of life—including reproduction, feeding, digestion, and excretion—takes place within a single cell. Plankton, bacteria, and amoebas are some example of unicellular organisms.
What is distinction among unicellular and multicellular?Multicellular creatures use a variety of cells to perform their many functions, in comparison to unicellular organisms, which consist of just one cell that performs all of the processes required by the organism. Among the unicellular organisms are yeast, protists, and bacteria.
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Ketonuria usually indicates abnormal metabolic processes that may be due to ________.
a) diets very low in carbohydrates b) hepatitis or other liver pathologies c) obesity and gross overeating d) a transfusion reaction
Answers
Ketonuria usually indicates abnormal metabolic processes that may be due to diets very low in carbohydrates.
So, the correct answer is option A
When the ketone level of your urine is excessively high, you have ketonuria. The conditions other names include acetonuria and ketoaciduria. acids that include or have ketone bodies. When you burn fats and proteins for energy, your body produces ketones. A typical adverse effect of the ketogenic diet is ketonuria. An energy-focused ketogenic diet severely limits or completely avoids carbohydrate consumption in favour of fats and protein. When you follow this low-calorie diet, your body must burn fats and proteins for energy, which results in the synthesis and excretion of ketone bodies.
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What role do park workers play in responding to climate change?
What priorities seem most important to the park officials interviewed in the video?
What problems do these workers face in planning for the future?
How do workers decide when to set a controlled burn, and how do they know if they
have been successful?
Answers
The answers include the following below:
The role park workers play in responding to climate change is by collecting data and monitor the weather and habitat to track climate change.The priorities which seem most important to the park officials interviewed in the video is that they are worried about wildfires and how the wildfire season is getting longer and dryer because of climate change.The problems these workers face is the difficulty in planning for and to tell how exactly the climate will change and affect the ecosystem.The workers decide when to set a controlled burn, and know if it is successful by looking at the foliage and fuel that's on the ground and by the weather.What is Climate change?This is referred to as the long-term shifts in temperatures and weather patterns and is caused by the emission of greenhouse gases such as carbon dioxide etc.
The role park workers play in responding to climate change is by collecting data and monitor the weather and habitat to track climate change. However their worry is that it is difficult to tell how exactly the climate will change and affect the ecosystem due to the unpredictable nature in some instances.
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Chapter 7: My Earth
Write an essay on the topic "My Earth".
Answers
The Earth was formed about 4.7 billion years ago. The Earth’s shape is very close to that of a sphere, not perfectly spherical. The Earth’s equatorial diameter is about 12,756 km, which is slightly larger than the polar diameter; about 12,714 km Surface Area of the Earth is 510,065,600 km2 of which 148,939,100 km2 (29.2 %) is land and 361,126,400 km2 (70.8 %) is water.
The Earth rotates on its axis, an imaginary straight line through its centre. The two points where the axis of rotation intersects the Earth’s surface are called as the poles, one of them is called the North Pole and the other is known as the South Pole. One rotation with respect to Sun is completed in 24 hours, called a solar day.
The Earth rotates in counter-clock direction or from left to right-or eastward direction. Rotation serves three reasons. First, the axis of rotation serves as a reference in setting up the geographic grid of latitude and longitude. Second, it provided a good measure of the passage of time, 24 hours or 1440 minutes or 86,400 seconds a day. Third, it greatly influenced the physical and life processes on Earth
The Earth is not only a planet where we live in, but is the most important natural resource. The territory in possession of a nation is important from its economic interest viewpoint. One of the ten largest countries in the world in terms of territory, six belong to emerging market economies.
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LIMITED TIME, HELP URGENTLY!!!!!!!
Fossil evidence suggests that a number of members of one fish species from an
ancient lake in Death Valley, California became several isolated species.
Each of these new species lived in a different pond.
Which of the following best explains the cause of this speciation?
Select one:
O temporal isolation
O geographic isolation
O behavioral isolation
O episodic isolation
Answers
Answer:
geographic isolation
Explanation:
as the lake is ancient they will have gotten adapted to it but as they grow the food there may not be able to feed them
hope this was helpful
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Bowerbirds construct elaborate bowers (nests) and decorate them with different colors to attract females. The Satin bowerbird builds a nest between upright sticks, and decorates with bright blue objects, while the MacGregor's bowerbird builds a tall tunnel of sticks and decorates with bits of white objects.
The two populations have almost identical genes, but the birds cannot
breed with each other. This is most likely because ____
Select one:
A forest separates the two populations of bird
Their different mating rituals separate the two populations
Both species of bird used to breed together until a hurricane randomly killed the some of the birds
The Satin bowerbirds are larger than the McGregor's bower birds
Answers
Answer:
Their different mating rituals separate the two populations.
Explanation:
likely the correct answer because the fact that the two populations of bowerbirds have "almost identical genes" suggests that they are closely related, but are unable to breed with each other. This is most likely due to the fact that they have developed different mating rituals, which includes building different types of bowers and decorating them with different colors. This difference in mating rituals would make it unlikely for the two populations to breed, as the females of each population would be attracted to the bowers and decorations that are specific to their own population.
witch scenario describes an interaction between two of earths spheres
Answers
Answer: You never gave the Options, A, B, C, D, etc. but here are some examples:
The atmosphere interacts with the hydrosphere when precipitation falls to the ground and fills rivers and lakes.
The biosphere interacts with the geosphere when plants and animals shape and change the landscape through erosion and other processes.
The atmosphere interacts with the biosphere when photosynthesis by plants produces oxygen, and respiration by plants and animals consumes oxygen. ☑️
Explanation:
An interaction between two of Earth's spheres would describe a scenario where events or processes in one sphere of the Earth's system affect or are affected by events or processes in another sphere.
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The climate shifts in an ecosystem, causing the rainy seasons to
become shorter and water to become more scarce overall. What is
the most likely outcome of this environmental change?
Select one:
O No change in the equilibrium of each population
O All populations will increase in size.
O Some populations will expand while others decline.
O All populations will decline in size.
Answers
Answer:
Some populations will expand while others decline.
Explanation:
The populations in the environment will probably be impacted as the climate changes, the rainy seasons shorten, and water becomes more scarce. While some that are less suited may have a lesser probability of surviving, the organisms that are more acclimated to the new conditions will have a higher likelihood of survival and reproduction.
The size of the populations in the ecosystem will alter as a result of this shift in the environment's impact on population dynamics. The size of certain populations may expand because they are more suited to the new circumstances, while the size of other populations may decrease because they are less adaptable. Given that the environment would change as a result of this scenario, it is important to note that no change in the equilibrium of each population is not likely to occur.
A. What are 2 regions where jellyfish populations have increased?
B. What are 3 regions where jellyfish populations have decreased
Answers
Answer: A:Japanese waters and the black sea
B: Indonesia,North America,South Korea
Explanation:
What happens to the volume of a washcloth when it is dry
or wet?
Answers
When washcloths are dry then volume decreases and when washcloths are wet then volume increases.
Why does it take longer for a folded wet towel to dry?The surface area closely relates to evaporation. Evaporation is inversely correlated with surface area or vice versa. Folding a wet towel reduces its surface area and slows evaporation, which makes drying take a long time.
Why does it take wet clothing longer to dry on a humid day?Because of the excessive humidity in the summer rain, clothing dries more slowly. The rate of evaporation slows down in the wet summer. Because there is no sun to shine on the garments, humidity is the amount of water in the air. The difference affects how quickly or slowly the material dries.
Why does a windy day make clothes dry more quickly?A windy day will have a high wind speed, which causes more water to evaporate. The amount of water vapor in the air decreases as wind speed increases due to the scattering of water molecules. As a result, on a windy day, garments dry more quickly.
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Death cap mushrooms produce a substance called alpha-amanitin-eating even one death cap mushroom can be fatal. The toxin alpha-amanitin is an inhibitor of transcription. What would you predict to be the immediate outcome of adding alpha-amanitin to a cell? O reduced DNA synthesis O reduced binding of tRNAs to anticodons O reduced rate of translocation by ribosomes translating mRNA O increased rates of protein synthesis O reduced production of one or more types of RNA
Answers
Soon after being exposed to amanitine, the nucleoli of liver cells disintegrate, which prevents RNA polymerase II from blocking DNA transcription and interfering with DNA synthesis.
Amanitine does this via interacting with RNA polymerase II's 140,000-Dalton subunit. Amanitin, a bicyclic octapeptide that was isolated from the death-cap fungus Amanita phalloides, is exceedingly poisonous. Eukaryotic cells are poisonous to amanitin because it is a strong inhibitor of RNA polymerase II. A class of antibiotics known as DNA synthesis inhibitors targets the synthesis of DNA in bacteria and other organisms. Metronidazole, a 5-nitroimidazole, is effective against numerous bacteria and protozoans and hinders the formation of nucleic acids, which are the building blocks of DNA.
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Q1. What are the importance of recycling in UAE ?
Q2. What are the different types of recycling plants in the UAE ?
Q3. What are the importance of recycling and how it helps the environment ?
Q4. How can we encourage people to recycle.
Note:
Please, I need the answers in 10 to 20 lines.
Answers
a) recycling helps to release the burden of waste that is released into the environment
b) There are plants the recycle the plastics and there are plants that recycle metals in the UAE.
c) Recycling would ensure that we do not have a lot of wastes in the environment.
d) We can encourage people to recycle by telling them the importance of the recycling of waste.
What is recycling?The handling of wastes has formed a key part of the discussion of many environmental specialists around the world. We know that there is a limit to which the environment can be able to taken the wastes that are being introduced into it with out treatment and these can also be able to cause a lot damage in other parts of the world.
The UAE have been a leading country in the rea of the recycling of waste as there are over 291 waste recycling centers that we have in the UAE and this have helped to avoid the build up of waste materials across the country.
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What would be an expected feature of a cell membrane that had no integral membrane proteins?
Answers
Answer:The membrane would be unable to transport sodium ions
Explanation:
the two strands of duplex dna are complementary in sequence and arranged in antiparallel fashion. what is the base sequence of the complementary strand to the following: 5'-atgctcgacttacat-3'
Answers
The correct option is A ; 5'-ATGTAAGTCGAGCAT-3' DNA is written 5' to 3', therefore the complimentary strand is 5'-3', while 5' here corresponds to the end (3') of the first strand.
The bases on one strand are considered to be complimentary because they regularly pair with the bases on the other strand (for example, A=T). Each DNA strand now includes the information needed to replicate the other DNA strand.
DNA is made up of two strands of nucleotides that are bound together by hydrogen bonds. The strands each stretch from 5' to 3' in antiparallel, or opposite, directions.
Two biopolymers are antiparallel in biochemistry if they run parallel to each other but in opposite directions (alignments). The two complimentary strands of a DNA double helix, which run in opposite directions beside each other, are an example.
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Full Question;
The two strands of duplex DNA are complementary in sequence and arranged in antiparallel fashion. What is the base sequence of the complementary strand to the following:
5'-ATGCTCGACTTACAT-3'
5'-ATGCTCGACTTACAT-3'
5'-TACATTCAGCTCGTA-3'
5'-ATGTAAGTCGAGCAT-3'
5'-TACGAGCTGAATGTA-3'
3'-ATGCTCGACTTACAT-5'
an adolescent asks the nurse about peak bone mass. the most appropriate response would be:
Answers
an adolescent asks the nurse about peak bone mass. the most appropriate response would be: Peak bone mass is the highest amount of bone density and mass that a person will have in their lifetime.
Peak bone mass is the highest amount of bone mass that a person has in their lifetime. It is usually reached around the age of 30 and is an important determinant of a person's risk of osteoporosis later in life. Factors that can affect peak bone mass include genetics, diet, and physical activity levels. Maintaining a healthy diet and regular physical activity can help ensure that a person reaches their peak bone mass and reduces their risk of osteoporosis later in life.
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As she studies her veterinary science course, Saanvi is creating a chart to help her remember which veterinary diseases produce which symptoms. Her chart is brief because she just uses it to refresh her memory before the tests, but Saanvi hopes that when she has her own practice, these little tips will come to her mind when she needs them. When she enters ringworm on her chart, which symptom will Saanvi MOST likely put to watch out for?
A.
circular patches of hair loss
B.
skin boils with black, smelly centers
C.
bloody diarrhea or bleeding from mouth
D.
head butting or loss of coordination
Answers
When she enters ringworm on her chart, a symptom which Saanvi would most likely put to watch out for include the following: A. circular patches of hair loss.
What is a disease?In Science, a disease can be defined as any harmful and abnormal deviation of the body of a living organism from its functional state or normal structure, which is typically accompanied by certain signs and symptoms.
What is a ringworm?In Medicine and health, a ringworm can be defined as a type of disease (fungal skin and nail infection) which produces a bright, red ring-shaped circular patch (rash) when it appears on the on the head, face, nail, trunk, or extremities of a living organism.
Generally speaking, a common symptom of ringworm is a circular patch of hair loss on the head of an infected persons. Therefore, we can logically conclude that Saanvi should look out for circular patches of hair loss on her chart.
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What are the 3 predators listed for peppered moths?
Answers
Answer:
A is flycatchers, nuthatches, and the European robin
Explanation:
The three predators listed for peppered moths are birds, bats, and spiders.
What are Peppered moths?
The Peppered Moth (Biston betularia) is a species of moth that is found in the wild primarily in Europe and North America. Some predators of the peppered moth include:
Birds: Birds such as Sparrows, warblers, and flycatchers are known to feed on adult moths, as well as the larvae and cocoons of the peppered moth.
Spiders: Many species of spiders, such as orb-weavers and jumping spiders, are known to feed on moths, including the peppered moth.Parasitoids: Parasitoids are insects that lay their eggs on or inside the larvae of other insects, such as moths. Once the eggs hatch, the parasitoid larvae consume the host insect, which in this case would be the peppered moth larva.Learn more about peppered moth, here:
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fresheater biome major attraction
Answers
What do you mean?
If you don't specify, then people who want to answer your question won't know what to do.
Question 21
Match the items.
epinephrine
norepinephrine
outer brain covering
middle brain covering
cerebrum
[Choose ]
[Choose ]
[Choose ]
[Choose]
[Choose ]
<
<
>
>
Answers
The arachnoid, a structure resembling a web and filled with fluid, is the middle layer and protects the brain. The durable outer layer is referred to as the dura mater.
What are the three dura mater layers?The brain and spinal cord are shielded by three layers of membranes called meninges. Pia mater is the thin inner layer. The arachnoid, a structure resembling a web and filled with fluid, is the middle layer and protects the brain. The durable outer layer is referred to as the dura mater.
Why is Duramat known as the "difficult mother"?Dura mater is defined. the topmost of three membranes, or meninges, that encircle the brain and spinal cord. Its Latin translation is "difficult mother." Due to the membrane's strength and thickness, which is typically firmly linked to the inside side of the skull, the term is appropriate.
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Which of the following are mechanisms of mRNA surveillance? Select all that apply. (the ones listed are correct)
nonsense-mediated mRNA decay
nonstop mRNA decay
no-go decay
Answers
The nonsense-mediated mRNA decay pathway (NMD), the nonstop mediated mRNA decay pathways (NSD), and the no-go mediated mRNA decay pathway are the three surveillance mechanisms now understood to operate within cells (NGD).
Premature termination codons in mRNA transcripts are detected and degraded via nonsense-mediated decay (PTCs). PTCs can develop in cells by a number of different pathways, including errors in transcription, somatic mutations in DNA, germline mutations in DNA, and abnormalities in post-transcriptional mRNA processing.
When an mRNA transcript lacks a stop codon, it is detected and degrades through a process called nonstop mediated decay (NSD). These mRNA transcripts can develop through a variety of methods, including early 3' adenylation or cryptic polyadenylation signals in a gene's coding region.
The most recent detection of a monitoring mechanism is No-Go decay (NGD). It is not currently fully understood as a result. Although the true targets of NGD are not well understood, it appears that the majority of them are mRNA transcripts where the translation of the ribosomes has halted.
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In addition to the amniotic egg, what other adaptation(s) do reptiles have
for living solely on land?
O Body hair
O Thick skin made of scales
O Breathable skin
O Four limbs
O Placenta
Answers
Answer:
B. Thick skin made of scales
Explanation:
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