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.

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Recombinant DNA Technology MCQs | Page 8 of 21

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Q71.
Which of the following occur in the presence of glucose?

a.

lac Z gene expression is increased

b.

cAMP increases

c.

Binding of CAP-cAMP complex to the promoter area decreases

d.

none of the above

Discuss
Answer: (c).Binding of CAP-cAMP complex to the promoter area decreases
Q72.
Sex hormones activate transcription of specific genes by

a.

binding to a transcription factor

b.

binding to RNA polymerase

c.

binding to DNA enhancer region

d.

binding to DNA promoter region

Discuss
Answer: (a).binding to a transcription factor
Q73.
The lac operon is translated into __________ proteins.

a.

1

b.

2

c.

3

d.

4

Discuss
Answer: (c).3
Q74.
In the presence of tryptophan in the cell, the repressor is __________

a.

bound to tryptophan

b.

bound to DNA

c.

bound to both DNA and tryptophan

d.

bound to neither tryptophan nor DNA

Discuss
Answer: (c).bound to both DNA and tryptophan
Q75.
Catabolite activating protein exerts __________ control on transcription of the lac operon genes.

a.

positive

b.

negative

c.

may be positive or negative

d.

none of these

Discuss
Answer: (a).positive
Q76.
What are genes?

a.

The functional unit of inheritance

b.

A fragment of DNA

c.

A portion of a chromosome

d.

All of the above

Discuss
Answer: (d).All of the above
Q77.
Which of the following is not a transcription factor?

a.

Helix-turn-helix proteins

b.

Zinc finger proteins

c.

Leucine zipper proteins

d.

Steroid hormones

Discuss
Answer: (d).Steroid hormones
Q78.
Sex determination in Drosophila involves

a.

alternate splicing

b.

methylation

c.

gene amplification

d.

none of these

Discuss
Answer: (a).alternate splicing
Q79.
Enhancers differ from promoters in that

a.

they initiate transcription

b.

they are adjacent to the start codon

c.

their orientation can be inverted without effect

d.

they are restricted to a specific gene

Discuss
Answer: (c).their orientation can be inverted without effect
Q80.
Methylated gene are

a.

active

b.

silent

c.

dynamic

d.

either (a) or (b)

Discuss
Answer: (b).silent
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