Question

In: Biology

1)Which part of a gene is directly bound by an activator protein

a)Transcription domain

b)Promoter

c)Enhancer

d)Initiator

2)Which part of a gene create the mRNA

a)Enhancer

b)promoter

c)transcription domain

d)none of the answers are correct

3)This structore allows eukaryotic cells to recognize their own mRNA

a)introns

b)all answers are correct

c)5' cap and 3' poly a tail

d)Exons

4)This structure allows viral RNA to hijack eukaryotic ribosomes

a)5' cap and poly A tail

b)IRES

c) small ribosomal subunit

d)none of the answers are correct

5)This protein initially activates siRNA

a) RISC

b) none of the answers are correct

c) DICER

d)target mRNA

6) This process describes random change sin the genetic sequence.

a) Transduction

b)Recombination

c)Mutation

d)Transformation

7)When bacteria exchange information directly with another bacteria they have undergone ...

a) Transduction

b)Transduction

c)Mutation

d)Conjugation

8)If a bacteria is infected with a virus carrying bacterial DNA, it has undergone...

a) Conjugation

b) Transformation

c) Mutation

d) Transduction

Expert Solution

1.The activators are the proteins that increases the expression of the gene by binding to the part of transcription domain which could be enhancer, initiator and promoter. Hence, option a is correct.

2. The mRNA is formed from the coding part of the gene known as exon. The enhancers, promoter regulate the mRNA formation only. Hence, option d is correct.

3. The introns that are removed during splicing, poat-transcriptional modifications , exons are all part of mRNA. Hence, option b is correct

4. The internal ribosome entry site is the virus entry point. Hence, option b is correct.

5. DICER protein activate siRNA. Hence, option c is correct.

6. Mutation is the process of random change in the nucleotide sequence. Hence, option c is correct.

7. Conjugation is the process of directly exchanging genetic material. Hence, option d is correct.

8. Transduction is the process of exchange of genetic material with the help of virus. Hence, option d is correct.

gladiator answered 2 years ago

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