A researcher is studying gene expression in different types of cells. For a gene of interest, he notes its expression no longer appears to be regulated—it occurs in all cells, rather than in just a few cell types. The gene’s corresponding transcript and protein, however, appear normal. This may be the result of a mutation in which of the following regions associated with the gene? (5 POINTS)Silencer

Intron

Exon

Promoter

9What role does the MutL protein play in DNA repair? (5 POINTS)

It performs a proofreading function, similar to DNA polymerase, and removes incorrect bases from the template DNA strand.

It recognizes and binds to a pair of "mismatched" nucleotides, preventing their translation.

It recognizes the newly-synthesized DNA strand (e.g., by detecting nicks), ensuring only it—and not the template strand—is repaired.

It helps to link together regions of DNA, after an error has been removed via exonuclease.

10If a mutation occurs that affects the large subunit of a ribosome, rendering it inactive, how would this affect translation? (5 POINTS)

The small subunit of the ribosome would fail to associate with a mRNA.

Methionine tRNA would not recognize the start codon of a mRNA.

New amino acids would not be added after the initial methionine, so translation would be effectively inhibited.

Arginine tRNA, rather than methionine tRNA, would associate with a mRNA’s stop codon.

Answers

Answer 1

Answer:

8) The region associated with the gene is : ( A ) Silencer

9) The role played by Mutl protein in DNA repair is : ( C ) It recognizes the newly-synthesized DNA strand (e.g., by detecting nicks), ensuring only it—and not the template strand—is repaired.

10) The effect on translation is : ( C ) New amino acids would not be added after the initial methionine, so translation would be effectively inhibited.

Function of the silencer

The silencer is the region of the DNA that regulates the expression of DNA in RNA and protein, since the mutation cannot regulate the expression of genes the region associated with this is the silencer.

Mutl proteins helps in identifying template DNA strand and newly synthesized DNA strand. they are also used in the treatment of methyl mismatch. also

Translation is inhibited when a large unit of ribosomes is affected by a mutation.

Hence we can conclude that The region associated with the gene is : Silencer. The role played by Mutl protein in DNA repair is :It recognizes the newly-synthesized DNA strand (e.g., by detecting nicks), ensuring only it—and not the template strand—is repaired.The effect on translation is New amino acids would not be added after the initial methionine, so translation would be effectively inhibited.

Learn more about mutation : brainly.com/question/17031191

Answer 2

Answer:

8- silencer

9- It recognizes the newly-synthesized DNA strand (e.g., by detecting nicks), ensuring only it—and not the template strand—is repaired

10- New amino acids would not be added after the initial methionine, so translation would be effectively inhibited.

Explanation:

Question 8

As the question is, mutation is unable to regulate gene expression and occurs in all cells. Thus, silencer are the DNA control region and regulate the expression of DNA into RNA and protein. Hence, option a is correct.

Question 9

This protein is used to differentiate between tempelate DNA strand and newerly synthesized DNA strand to rectify the foundation incorporated during DNA replication; it helps to identify new synthesizes of DNA. MutL Proteines are a proteins used to treat a methyl mismatch repair system. Hence, option c is correct.

Question 10

If the large unit of ribosome is affected by a mutation, new amino acid is not introduced after inhibition of the original methionine and translation. Hence, option c is correct.

Related Questions

Why did geneticists believe, even before direct experimental evidence was obtained, that the genetic code would turn out to be composed of triplet sequences and be non overlapping
¿Cuáles son los aspectos más relevantes del informe de Brundtland?
Ten grams of hamburger were added to 90 ml of sterile buffer.This was mixed well in a blender. One-tenth of a ml of this slurrywas added to 9.9 ml of sterile buffer. After thorough mixing, thissuspension was further diluted by a 1/100 dilution followed by a1/10 dilution. One-tenth of a ml of this final dilution was platedon agar plates. After incubation, 52 colonies were present. Howmany colony-forming units were present in the total 10 gram sampleof hamburger?
A researcher conducted crosses between two different strains of Drosophila. When true-breeding flies with singed bristles (s) and normal wings (L) were crossed to true-breeding flies with normal bristles (S) and vestigial wings (l), all F1 offspring had normal wings and normal bristles. The F1 offspring were crossed to flies with singed bristles and vestigial wings. Which F2 offspring is/are recombinant?
What is the helpful statement when remembering eukaryotes and cell membranes?

Erythrocytes might the best of example of form equals function because they lack many organelles. What organelles are absent in erythrocytes?

Answers

Mature mammalian red blood cells lack nuclei, mitochondria and rough endoplasmic reticulum, they do not contain DNA and consequently, cannot divide. They also cannot synthesise RNA nor synthesise any new proteins, and consequently, have a limited lifespan. Mature red blood cells circulate for about 100–120 days in the body before they are removed by the spleen.

Hope this helps

ATP is produced during the light reactions of photosynthesis. This ATP is used to_____________in the Calvin Cycle.A. split water into oxygen has and hydrogen
B. produce NADPH
C. reduce carbon dioxide into glucose
D. None of these are correct

Answers

Answer:

Explanation:

The energy source is ATP, and the reducing agent is NADPH, which adds high-energy electrons to produce sugar.

Is the reduced form of cytochrome c more likely to give up its electron to oxidized cytochrome a or cytochrome b, why? Provide a brief rationale for your answer.

Answers

Answer:

The reduced form of cytochrome c more likely to give up its electron to oxidized cytochrome a having a higher reduction potential.

Explanation:

Electrons from NADH and FADH2 flow spontaneously from one electron carrier of the electron transport chain to the other. This occurs since the proteins of the ETC are present in the order of increasing reduction potential. The reduced cytochrome b has lower reduction potential than cytochrome c1 which in turn has a lower reduction potential than the cytochrome c.

Cytochrome c is a soluble protein and its single heme accepts an electron from cytochrome b of the Complex III. Now, cytochrome c moves to complex IV which has higher reduction potential and donates the electron to cytochrome a which in turn passes the electrons to O2 via cytochrome a3.

A virus requires a host cell in order to?

Answers

Infect to reproduce
Hope it helps you

In a large population, the allele frequency of A was .5 and changed to .7 over just a few generations. Which of the following statements about this example is FALSE?1. Evolution is occurring in the population.
2. The A allele is undergoing positive selection and istherefore adaptive.
3. The a allele is undergoing negative selection anddecreases fitness.
4. The population is undergoing genetic drift.
5. None of the above is false

Answers

Answer:

Option:(5)- All of them are correct.

As the change in allele frequency causes the change in genome of the living organism inside few generations.

Explanation:

The effects of change in allele frequency:

The effect may leave the organism with the loss of some genes, while it can effect cause the loss of some of the beneficial genes inside the genome of the organism. Along with that the process can also improve the sequence of genes which are abnormal in nature.

Genetic Drift:

"The change or the evolution inside the alleles frequency of the organisms genome, which may occur due to the chance events."

As the process of genetic drift occurs inside generations, which leaves the random organisms to live.

Who owns the alcoholic beverage of a private club

Answers

The bartender of the Private Club

Answer:

The bartender of the Private Club

Explanation:

someone said that above me and i believe that is right :)

Other Questions

To determine whether the mutations in the seven strains leading to the wingless phenotype are in the same gene, your lab sets up complementation tests. You obtain the following results (" " indicates that complementation was observed; "-" indicates that no complementation was observed).

Describe the functional and comparative genomics

When wind drips its load of sand, it can form a hill called a

What are three techniques that can be used to show that the electron transport chain is found on the matrix side of the inner mitochondrial membrane. Select all that apply.