DNA,RNA and Protein Metabolism MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on DNA,RNA and Protein Metabolism, a fundamental topic in the field of Biochemistry. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our DNA,RNA and Protein Metabolism MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of DNA,RNA and Protein Metabolism mcq questions that explore various aspects of DNA,RNA and Protein Metabolism problems. Each MCQ is crafted to challenge your understanding of DNA,RNA and Protein Metabolism principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Biochemistry tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our DNA,RNA and Protein Metabolism MCQs are your pathway to success in mastering this essential Biochemistry topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of DNA,RNA and Protein Metabolism. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your DNA,RNA and Protein Metabolism knowledge to the test? Let's get started with our carefully curated MCQs!

DNA,RNA and Protein Metabolism MCQs | Page 12 of 37

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Q111.
What is the average size (in bp) of a mature t-RNA?

a.

80 bp

b.

100 bp

c.

120 bp

d.

140 bp

Discuss
Answer: (a).80 bp
Q112.
What modified base is at the 5' extremity of a capped eukaryotic m-RNA?

a.

1-methyl-adenosine

b.

2'-O-methyl-guanosine

c.

7-methyl-guanosine

d.

1-methyl-guanosine

Discuss
Answer: (c).7-methyl-guanosine
Q113.
What is the function of messenger RNA?

a.

It carries amino acids

b.

It is a component of the ribosomes

c.

It is a direct copy of a gene

d.

It is the genetic material of some organisms

Discuss
Answer: (c).It is a direct copy of a gene
Q114.
Retroviruses replicate via __________ intermediate

a.

RNA

b.

DNA

c.

mRNA

d.

rDNA

Discuss
Answer: (b).DNA
Q115.
During RNA synthesis, the DNA template sequence 5'Tp Ap Gp Cp 3' Would be transcribed to produce which of the following RNA sequence?

a.

5'-Ap Tp Cp Gp-3'

b.

5'-Gp Cp Up Ap-3'

c.

5'-Gp Cp Tp Ap-3'

d.

5'-Ap Up Cp Gp-3'

Discuss
Answer: (b).5'-Gp Cp Up Ap-3'
Q116.
RNA instability in alkaline solutions is due to

a.

adenine

b.

ribose

c.

uracil

d.

single strand nature

Discuss
Answer: (b).ribose
Q117.
In RNA, uracil pairs with

a.

adenine

b.

cytosine

c.

thymine

d.

guanine

Discuss
Answer: (a).adenine
Q118.
Two features of the tRNA molecule associated, in converting the triplet codon to an amino acid, are

a.

in the T Loop and D stem and loop

b.

in the anticodon loop and D stem loop

c.

in the anticodon loop and the 3' CCA end

d.

none of the above

Discuss
Answer: (c).in the anticodon loop and the 3' CCA end
Q119.
The direction of amino acid transfer to the growing polypeptide chain is

a.

from the A (aminoacyl tRNA site) site to the P (peptidyl tRNA site) site on the ribosome

b.

from the P site to the A site on the ribosome

c.

from the A site to the E (exit tRNA site) site on the ribosome

d.

from the P site to the E site on the ribosome

Discuss
Answer: (b).from the P site to the A site on the ribosome
Q120.
The pathway of a tRNA during polypeptide elongation on the ribosome is

a.

A site → P site → E site

b.

P site → entry site → exit site

c.

A site → P site → entry site

d.

P site → A site → E site

Discuss
Answer: (a).A site → P site → E site
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