Why do silent mutations not affect the protein that the gene encodes?

Answers

Answer 1

Answer: Silent mutations occur when the change of a single DNA nucleotide within a protein-coding portion of a gene does not affect the sequence of amino acids that make up the gene's protein. ... And when the amino acids of a protein stay the same, researchers believed, so do its structure and function.


Related Questions

Darwin observed that finches’ _______ were specialized according to their unique environments.

Answers

Answer:

beaks

Explanation:

PLEASE HELP !! ILL GIVE 40 POINTS ; PLUS BRAINLIEST !! DONT SKIP ANSWER.

Answers

C or d

But I’ll choose C!

Describe two primary functions of the cell membrane.

Answers

Answer:

Explanation:

The cell membrane, therefore, has two functions: first, to be a barrier keeping the constituents of the cell in and unwanted substances out and, second, to be a gate allowing transport into the cell of essential nutrients and movement from the cell of waste products.

Storage polysaccharides, like starch and glycogen, often contain over a million glucose units. The energetic cost of synthesizing polysaccharides is high (about one high-energy phosphate bond per sugar residue added). Suppose that in a liver cell, the glucosyl residues in large numbers of glycogen molecules were replaced with an equivalent number of molecules of free glucose. What problems would this cause for the liver cell

Answers

Answer:

Glucose present as monomers within the cell will exert more osmotic pressure than a single glycogen molecule, resulting in endosmosis and the lysing of cells.

Also, the presence of free glucose molecules will result in increase in weight of the liver due to lack of efficient packing as in glycogen as well as the association ofnthe glucose molecules with water molecules.

Explanation:

Glycogen is a polysaccharide composed of glucose monomer units linked to Each other by α-1,4-glycosidic binds. α-1,6-branches arises at about every 10th glucose residue in the straight chain. Thus animals more glucose molecules to be stored within a much smaller space, thereby incresing the bulkiness of glycogen. Glycogen molecules are insoluble in the aqueous medium of the cell because it doesn't have enough free polar groups to participate in hydrogen bonding with water and are stored as granules and therefore do not affect the water potential or osmotic balance of the cell.

On the other hand, glucose molecules are highly soluble in water because it has many free polar -OH grours that form hydrogen bonds with water. If the glucosyl residues in large numbers of glycogen molecules were replaced with an equivalent number of molecules of free glucose, the free glucose will exert a high osmotic pressure inside the cell, causing the entry of water in the cell by endosmosis resulting in swelling and lysis ofnthe cell. Also, the space occupied by these free glucose units within the cell will be much larger than that of glycogen whichmenables efficient packing ofthe glucose molecules.

please help me it’s due in 20 minutes

Answers

Answer:

ok

Explanation:

1. p

2. n

3. n

4. p

5. n

6. p

7.p

8. n

Whether there is a net flow of fluid into or out of a capillary at a given spot along its length depends on _____.whether or not the fluid contains carbon dioxide whether or not the fluid contains oxygen whether the fluid contains nutrients or wastesthe balance between blood pressure and osmotic pressurethe needs of the tissue

Answers

Answer: Depends on the balance between blood pressure and osmotic pressure.

Explanation:

The capillaries are part of the microcirculation that transports nutrients to the tissues and removes cell excreta. The walls of the capillaries are extremely thin, constructed of single - layer, highly permeable endothelial cells. Therefore, water, cell nutrients and cell excreta can all interchange quickly and easily between the tissues and the circulating blood.

The tissues of the body is made up of soo many capillaries which helps to deliver blood and it's contents to it. The hydrostatic pressure in the capillaries tends to force fluid and it's dissolved substances through the capillary pores into the interstitial spaces. Conversely, osmotic pressure caused by the plasma proteins( called COLLOID OSMOTIC PRESSURE) tends to cause fluid movement by osmosis from the interstitial spaces into the blood. This osmotic pressure excreted by the plasma proteins normally prevents significant loss of fluid volume from the blood into the interstitial spaces.

Therefore, a balance between hydrostatic pressure in the capillaries which is influenced by blood pressure and osmotic pressure in order for a net flow of fluid into or out of a capillary to occur.

Which statement is an example of a qualitative measurement?
A
That structure is four meters long.
B
Water can have a cold temperature.
с
This solution has a temperature of 56° C.
D
Light travels at 3 x 108 m/s.

Answers

Answer:

The correct answer is - B. Water can have a cold temperature.

Explanation:

Qualitative measurement is a type of measurement that is not based on numerical or numbers but is completely based on the quality of the particular thing. It can be distinguished on basis of the term quality which is based on the character of the substance or condition whereas quantitive is which is based on numerics or numbers.

Among these, all the three choices have numerical measurement but the choice in which it is expressed that water can have cold temperature is qualitative measurement as cold is the quality of the water here.

Choose three characteristics of enhancers and silencers. Select the three correct statements. Select the three correct statements. Their orientation may be inverted without significant effect. They can act only at a little distance from the promoter. An enhancer can regulate many different genes, while a silencer regulates only one gene or group of closely related genes. They can regulate only one gene or group of closely related genes. They can act at a great distance from the promoter. They can regulate other genes when inserted. They can only act if they are placed downstream from the promoter.

Answers

Answer:

im sorry idfk

Explanation:

Compare salt marshes and mangrove forests and explain why mangrove forests are such critical habitats on high energy coasts.​

Answers

Answer:

Explanation:Coastal wetlands in the southeastern U.S. provide many important ecosystem goods and services. In addition to supporting important fish and wildlife habitat, they maintain coastal fisheries, store carbon, improve water quality, protect coastlines, and provide recreational opportunities. In many ways, coastal wetlands are dynamic and resilient ecosystems; however, they are being subjected to tremendous environmental change at the regional (e.g., hydrologic alterations, nutrient enrichment) and global scale (e.g., climate change).

One aspect of global change that is expected to have a substantial impact on coastal wetlands is winter climate change. Salt marshes and mangrove forests are common coastal wetland ecosystem types that occupy similar estuarine environments but have different climatic tolerances. In warmer climates, mangrove trees often outcompete salt marsh grasses. However, mangrove forests are sensitive to freezing temperatures, and within the region, mangrove forests are currently found only in Florida, Louisiana, and Texas (though isolated individuals have been reported in Mississippi). Salt marshes are more dominant along colder coastlines where mangroves are not able to survive freeze events. Future climate change is expected to result in increased winter temperatures and, potentially, reductions in the intensity of freeze events which could lead to mangrove forest replacement of salt marsh in parts of the Gulf of Mexico and southeastern Atlantic coast.

From a functional perspective, salt marsh grasses and mangrove trees are foundation species that control ecosystem dynamics and, in stressful and highly dynamic environments, provide the structural properties needed by other species; hence, the ecological and conservation implications of grass-to-tree conversions in coastal wetlands could be large (in both positive and negative ways). Dr. Mike Osland, USGS Research Ecologist and GCPO LCC staffer, along with 4 collaborating scientists, has initiated a study that addresses the following question: how might winter climate change impact the distribution and abundance of salt marshes and mangrove forests in the southeastern U.S.?

Their results begin to illustrate the vulnerability of salt marshes in the southeastern U.S. to mangrove forest expansion and quantify the amount of salt marsh habitat within each state that could be impacted by mangrove forest expansion under various winter climate change scenarios. The preliminary results are striking in terms of the potential for mangrove forest range expansion and coastal marsh displacement in the region. The hope is that these analyses stimulate additional discussion, research, and planning regarding the potential ecological and conservation implications of winter climate change for coastal wetlands in the southeastern U.S.

Answer:

Salt marshes are coastal wetlands found throughout the world on protected shorelines and on the edges of estuaries where freshwater mixes with seawater.

Mangrove forests are those which contain Mangroves which are trees and shrubs that grow in saline (brackish) coastal habitats in the tropics and subtropics.

Explanation:

What are the four kinds of acid precipitation ?

Answers

Acid rain, or acid deposition, is a broad term that includes any form of precipitation with acidic components, such as sulfuric or nitric acid that fall to the ground from the atmosphere in wet or dry forms. This can include rain, snow, fog, hail or even dust that is acidic.
Acid rain, or acid deposition, is a broad term that includes any form of precipitation with acidic components, such as sulfuric or nitric acid that fall to the ground from the atmosphere in wet or dry forms. This can include rain, snow, fog, hail or even dust that is acidic.

what is the final step in the water cycle?

Answers

Answer:

The funny thing is that the water that falls from the sky as rain today, might have fallen last week, last month, last year or thousands of years ago. It is the greatest recycler of all time! There are four main stages in the water cycle. They are evaporation, condensation, precipitation and collection.

Sex linked genes are located on the


a. autosomes

b. the X chromosme only

c. the Y chromosome only

d. both the X and Y chromosomes

Answers

Answer:

d

Explanation:

Answer:

D. Both X and  Y chromosomes

Explanation:

Sex linked is a trait in which a gene is located on a sex chromosome. In humans, the term generally refers to traits that are influenced by genes on the X chromosome. This is because the X chromosome is large and contains many more genes than the smaller Y chromosome.

stions
sc2bs13h.Ch07.05
A motor unit is a motor neuron (nerve cell) plus
of the muscle fibers it stimulates.
a. one-half
b. one-third
C. three-fourths
d. all

Answers

Answer:

D or A I think it might be D but maybe A

PLEASEEE HELPPPP!!!!!!!

Answers

Answer:

D

Explanation:

The Hawaiian honeycreeper bird has a mutualistic relationship with the Hawaiian silversword plants. The Hawaiian silversword plants have been widely destroyed due to human development in the area

Which of the following explanations BEST predicts how human development will affect the Hawaiian honeycreeper bird population?

Answers

Answer:

The Hawaiian honeycreeper bird population will decrease because they rely on the Hawaiian silversword plants for survival.

Explanation:

The destruction of Hawaiian silversword plants due to human development hurts the Hawaiian honeycreeper bird population as the bird exists in a mutual relationship with the plants.

What is the relationship between Hawaiian silversword plants and honeycreeper birds?

Hawaiian honeycreeper bird has a mutual relationship with Hawaiian silversword plants, where the bird feeds on the plant's nectar and pollinates the flowers. If the plant population decreases, it will result in a reduced food supply for the bird which decreases their population size.

Loss of the silversword plants also destroys their habitat which can impact their population. Therefore, human development results in a decrease in the Hawaiian honeycreeper bird population.

However, the loss of the honeycreeper bird population also affects the ecosystem as they play a very important role in seed dispersal and plant reproduction which reduces plant diversity and also negatively impact other species that depend on the Hawaiian silversword plants for food.

Therefore, the destruction of Hawaiian silversword plants hurts the Hawaiian honeycreeper bird population as the bird exists in a mutual relationship with the plants.

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Which of the following is an example of an environmental impact of agriculture?

Answers

A major cause of deforestation and other ecological damage that destroys habitats and biodiversity is agricultural growth.

Thus, Lowland forests in Indonesia being replaced by oil palm plantations, and the Cerrado and Atlantic Forests in Brazil and Paraguay are harmed by soy farming.

Extreme erosion is caused by logging and farming methods that are not sustainable. Half of all agricultural topsoil has been lost during the previous 150 years.

In many nations, agriculture is the main cause of pollution. Pesticides, fertilizers, and other harmful agricultural chemicals have the potential to contaminate fresh water, marine habitats, air, and soil. They may also linger in the environment for many years.

Thus, A major cause of deforestation and other ecological damage that destroys habitats and biodiversity is agricultural growth.

Learn more about Agriculture, refer to the link:

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The structure composed of a sheet of simple squamous epithelial cells that's folded onto itself to form a double layer is a

Answers

Answer:

This question lacks options, the options are;

A. parietal layer.

B. serous membrane.

C. nuclear membrane.

D. mucous membrane.

The answer is B

Explanation:

The serous membrane is a covering membrane found in living systems. The serous membrane covers the surfaces of certain structures in the body such as heart, lungs etc. where they secrete lubricants that reduce friction during movement.

The structure of the serous membrane is composed of a sheet of simple squamous epithelial cells (secretes the lubricants) that folds onto itself to form a double layer. The layers are joined by a connective tissue.

HELP ASAP I WILL GIVE BRAINLIST! How many moles of Ca(OH)2 are present in 370.47 grams of Ca(OH)2? (5 points)

2

3

5

6

Answers

Answer:

c.5

Explanation:

moles= mass/molar mass

molar mass of Ca(OH)2=74.092gmol-1

moles=370.47/74.092

moles =5

Considering the definition of molar mass, 5 moles of Ca(OH)₂ are present in 370.47 grams of Ca(OH)₂.

Definition of molar mass

The molar mass of substance is a property defined as its mass per unit quantity of substance, in other words, molar mass is the amount of mass that a substance contains in one mole.

The molar mass of a compound (also called Mass or Molecular Weight) is the sum of the molar mass of the elements that form it (whose value is found in the periodic table) multiplied by the number of times they appear in the compound.

Molar mass of Ca(OH)₂

In this case, you know the molar mass of the elements is:

Ca= 40 g/mole

O= 16 g/mole

H= 1 g/mole

So, the molar mass of the compound Ca(OH)₂ is calculated as:

Ca(OH)₂= 40 g/mole + 2× (16 g/mole 1 g/mole)

Solving:

Ca(OH)₂= 74 g/mole

Moles of 370.47 grams of Ca(OH)₂

Next, you can apply the following rule of three: If by definition of molar mass 74 grams of the compound are contained in 1 mole, 370.47 grams of the compound are contained in how many moles?

[tex]amount of moles=\frac{370.47 gramsx1 mole}{74 grams}[/tex]

amount of moles≅ 5 moles

Finally, 5 moles of Ca(OH)₂ are present in 370.47 grams of Ca(OH)₂.

Learn more about molar mass:

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Muscles that produce movement in a single direction are
a. prime movers.
b. antagonists.
C. synergists.
O d. obliques.

Answers

a. prime movers

Muscles that produce movement in a single direction are prime movers

A single codon is used to signal the beginning of protein synthesis. It is commonly called the START CODON. Locate the start codon on the chart. What are the three bases of this codon? ________

Answers

About the question:

You will find the chart in the attached files

Answer:

The strat codon is AUG  

Explanation:

Genetic information for the aminoacids assembly during the protein synthesis is stored in short sequences of three nucleotides named codons in the mRNA. Each of the codons represents one of the 20 amino acids used to build the protein. The total number of possible codons is 64, from which 61 codify amino acids -more than one codon codify for the same amino acid-. One of these amino acids is also the start point of protein synthesis. And the left three codons are stopping translation points.

The codons indicating the initiation or stop points during the translation process are:

The start codon AUG is the most common sequence used by eukaryotic cells and places near the 5´extreme of the molecule. However, other codons might be used as well. Prokaryote cells might use the codons GUG or UUG. The end codons are UAA, UAG, UGA.

Answer:

AUG

Explanation:

What are the three bases of this codon? AUG

Explain the use of NBT​

Answers

Answer:

The National Benchmark Tests (NBTs) are assessments for first-year applicants into higher education institutions. The NBTs were designed to measure a writer's ability to transfer understanding of Academic Literacy, Quantitative Literacy and Mathematics to the demands of tertiary coursework.

Hope this helps.

Answer: The National Benchmark Tests are assessments for first-year applicants into higher education institutions.

Explanation:

What is the correct order of carbon dioxide as it leaves the respiratory tract?

Answers

Answer:

please give me brainlist and follow

Explanation:

Carbon dioxide (CO2) is transferred from returning blood back into gaseous form in the lungs and exhaled through the lower respiratory tract and then the upper, to complete the process of breathing.

carbon dioxide passes from the blood into the alveoli and is then exhaled. Oxygenated blood travels from the lungs through the pulmonary veins and into the left side of the heart, which pumps the blood to the rest of the body (see Function of the Heart).

A pulse of sugars labelled with a fluorescent dye is supplied to leaves of young plants. After a brief interval, tissue sections are obtained from the plant and examined under the fluorescence microscope. Tissues are scored for the presence of fluorescence and ranked from very high to low fluorescence. Which cells would contain the most fluorescence

Answers

A pulse of sugars labelled with a fluorescent dye is supplied to leaves of young plants. After a brief interval, tissue sections are obtained from the plant and examined under the fluorescence microscope. Tissues are scored for the presence of fluorescence and ranked from very high to low fluorescence. Which cells would contain the most fluorescence

a. xylem

b. companion cells

c. sieve elements

d. epidermis

Answer: b. companion cells

Explanation:

The xylem and phloem are the vascular tissues in plants. Their function is to transport water and sugars respectively to all the parts of the plant body. Xylem is only involved in water transport. Companion cells and sieve elements are the two components of the phloem. The companion cells are the storage house of sugars they have a role in movement of the sugars in and out of the sieve elements. They take up sugars via active transport by using their transmembrane proteins. The companion cells will show major fluorescence as these are the reservoir of sugars.

9.How does a hummingbird's beak help it to meet its basic needs?Lector inmersivo
(1 Punto)

The beak helps the bird to fly.

The beak allows the bird to swim fast.

The beak scares away predators.

The beak allows the bird to eat the nectar out of flowers.

Answers

Answer: the beak allows the bird to eat the nectar out of flowers

Explanation: Hummingbirds have long, needlelike beaks they use to probe deep into flowers.. The hummingbird's beak is just a protective sheath for its tongue, which is actually what the hummingbird is using to get the nectar out of the flower.

hope that helps if you have any questions let me know and if you could mark this as brainliest i would really appreciate it and press the thank you button!

What does this timeline suggest about the feminist movement?​

Answers

Answer:

B

Explanation:

PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!

Body Systems and Organization

Answers

Answer:

the answer to the question is B

Answer:

B) The reproductive system.

Explanation:

The reproductive system provides humans with the ability to reproduce.

hope this helps and is right :)

If you were appointed to a senior position, what would you do first?​

Answers

Explanation:

I will study my responsibility.I will work as a guardian to the juniors and fulfill the tasks I am accompanied with.I will try my best to satisfy everyone.I won't give any kind of disappointment to anyone regarding my work and performance.

I will give BRAINLY please help

Answers

Answer:

A

Explanation:

It makes the most sense! if it is correct please mark me brainly. if it is wrong tell me or report me!

it’s a!!!!!!! .........

Which part of the electromagnetic spectrum was used by Galileo when he looked through a telescope and saw light from the stars with his eyes?
O gamma radiation
radio waves
visible-light
0 X-rays

Answers

Answer:

visible

Explanation:

Sally was exposed to hepatitis. Her doctor gave her an injection containing
antibodies to help her fight off the infection before her immune system had a chance
to kick in.
action
or
MAR is
tion
72411
active immunity - naturally acquired
active immunity - artificially acquired
passive immunity - naturally acquired
passive immunity - artificially acquired

Answers

Answer:

The correct answer is - passive immunity - artificially acquired.

Explanation:

Passive immunity is the immunity that involves giving or acquiring antibodies from other sources instead of developing them on one's own. This type of immunity can be natural and artificial. Mother breastfeed the babies, is the natural passive immunity example as milk also contain antibodies required for immunity of babies.

Artificial passive immunity is the immunity that comes from injecting the antibodies created in different animals or persons which called antiserum or vaccines such as snake antivenom.

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Identify the coefficient (s) of the variable in the expression below.25-6zA:zB:1C:6D:25 and 6 What does Florence think of Despereaux? Use at least two details from the text to support your answer. Barnum and Bailey part of a famous traveling circus, so they travel frequently. Their child, Ringling, is an 11-month-old baby and travels everywhere the circus goes. Ringling has a regular routine but easily adapts to new eating and sleeping habits whenever the circus moves across states. According to Chess and Thomas, Ringling would be classified asan easy child.an inhibited child.a slow-to-warm-up child.a passive child. A reading specialist wanted to estimate the mean word length, in number of letters, for an elementary school history textbook. The specialist took repeated random samples of size 100 words andestimated the mean and standard deviation of the sampling distribution to be 4.9 letters and 0.15 letter, respectively.Based on the estimates for the sampling distribution, which of the following provides the best estimates of the population parameters? Select the correct answer.Anna has almost finished restoring a damaged photograph. Which tool or filter should she use as a final enhancement to complete the photograph?A. Smudge toolB. Sharpen toolC. Clone toolD. Spot Healing toolE. Blur tool Evaluate THREE ways in which employment will minimize emotional stress. Please help Ill mark you as brainliest if correct Triangle ABC and triangle DEF are similar. What is the measure of side DF? What value of w makes the equation 3(-4W - 5) = -7(5 + w) true? how does groundwater become polluted? A.) It is not possible for groundwater go be pollutedB.) Factories dump their waste directly into aquifers C.) Refuse infiltrates the water table when garbage is dumped D.) Through the tilling of the landE.) Pollutants mixed with water pass through permeable layers above the aquifer A Quality Analyst wants to construct a sample mean chart for controlling a packaging process. He knows from past experience that whenever this process is under control, package weight is normally distributed with a mean of twenty ounces and a standard deviation of two ounces. Each day last week, he randomly selected four packages and weighed each:Day Weight (ounces) Monday 23 22 23 24Tuesday 23 21 19 21Wednesday 20 19 20 21Thursday 18 19 20 19Friday 18 20 22 20What are the upper and lower control limits for these data?a. UCL = 22.644 LCL = 18.556b. UCL = 22.700 LCL = 18.500c. UCL = 22.755 LCL = 18.642d. UCL = 21.814 LCL = 19.300 help if you know thank you x help first letter for character Does someone help please??? which one is true? Studies show that volcanoes emit about 130 to 380 million metric tons of carbon dioxide (CO2) per year.Which question can best help scientists determine if either volcanic eruptions or human activities are the main cause of the increasing CO2 levels shown in Graph 2?AHow many active volcanoes are there on Earth?BIs there more carbon in limestone and rock deposits or in coal, oil, and gas deposits?CDoes the rate of combustion for fossil fuels occur faster than a volcanic eruption?DHow has the emission of greenhouse gases from human activities changed over time? Which of the following describes the structure of amitochondrion? Combine terms: 12a + 26b -4b 16a. WILL GIVE BRAINLEST PLEASE HELPDoes Major Miles' experience with Eneas at his home make him question whether he should be helping to send Native American children away, or doesit strengthen his belief that he is doing the right thing? Think about the setting where Major Miles found Eneas and how he felt about the boy helping theolder people The coordinates of point A are (6, 2). The coordinates of point B are (2, 6). ABis transformed to form AB, shown in the graph. What is the transformation of AB that results in AB? Drag and drop the answers into the boxes to complete the sentence. AB is Response area Response area to form AB . A graph with a line between points A begin ordered pair -6, 2 end ordered pair and B begin ordered pair -2, 6 end ordered pair please help me guysWhich linear equation represents the data in the accompanying table?