Recombinant DNA Technology MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Recombinant DNA Technology, 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 Recombinant DNA Technology 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 Recombinant DNA Technology mcq questions that explore various aspects of Recombinant DNA Technology problems. Each MCQ is crafted to challenge your understanding of Recombinant DNA Technology 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 Recombinant DNA Technology 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 Recombinant DNA Technology. 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 Recombinant DNA Technology knowledge to the test? Let's get started with our carefully curated MCQs!

Recombinant DNA Technology MCQs | Page 18 of 21

Discover more Topics under Biochemistry

Q171.
Which of the following about mRNA stability is not correct?

a.

Regulation of mRNA stability is a way of regulating gene expression

b.

Prokaryotic mRNAs have a half-life of only a few minutes

c.

Histone mRNAs have especially long poly-A tails and are stable

d.

It is thought that poly-A tails stabilize eukaryotic mRNAs

Discuss
Answer: (c).Histone mRNAs have especially long poly-A tails and are stable
Q172.
CAP is

a.

Catabolite gene activator protein

b.

Catabolite gene repressor protein

c.

Anabolite gene activator protein

d.

Anabolite gene repressor protein

Discuss
Answer: (a).Catabolite gene activator protein
Q173.
Trp repressor is a

a.

Homodimer

b.

Homotrimer

c.

Heterodimer

d.

Heterotrimer

Discuss
Answer: (a).Homodimer
Q174.
Attenuator sequences base-pair to form a stem-and-loop structure rich in

a.

A = T

b.

G ≡ C

c.

A = C

d.

G = C

Discuss
Answer: (b).G ≡ C
Q175.
Which of the following regulatory sequence allows transcription to continue?

a.

Sequence 1

b.

Sequence 2

c.

Sequence 3

d.

Sequence 4

Discuss
Answer: (b).Sequence 2
Q176.
Formation of the attenuator stem-and-loop structure depends on the events that occur during translation of

a.

Regulatory sequence 1

b.

Regulatory sequence 2

c.

Regulatory sequence 3

d.

Regulatory sequence 4

Discuss
Answer: (a).Regulatory sequence 1
Q177.
Which of the following takes place when tryptophan levels are low?

a.

Ribosomes quickly translates sequence 1

b.

Sequence 2 is blocked before sequence 3 is transcribed

c.

Ribosomes pauses at the Try codons in sequence 1

d.

Attenuation at the attenuator structure formed by sequences of 3 and 4

Discuss
Answer: (c).Ribosomes pauses at the Try codons in sequence 1
Q178.
Which of the following takes place when tryptophan levels are high?

a.

Attenuation at the attenuator structure formed by sequences of 3 and 4

b.

Ribosomes pauses at the Try codons in sequence 1

c.

Formation of paired structure between 2 and 3 sequences prevents attenuation

d.

2:3 structures, unlike the 3:4 attenuator, does not prevent transcription

Discuss
Answer: (a).Attenuation at the attenuator structure formed by sequences of 3 and 4
Q179.
Whose interaction with Lex-A facilitates the repressor’s self-cleavage reaction?

a.

Rec-A

b.

Rec-B

c.

Rec-C

d.

Rec-D

Discuss
Answer: (a).Rec-A
Q180.
When DNA segment is in one orientation

a.

The gene for FljB and gene encoding FljA are expressed

b.

The gene for FliC are expressed

c.

The gene for FljB and gene encoding FljA are not expressed

d.

The gene for FljB and gene encoding FljC are not expressed

Discuss
Answer: (a).The gene for FljB and gene encoding FljA are expressed
Page 18 of 21