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 3 of 21

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Q21.
The closed complex at bacterial promoters is

a.

in equilibrium with free RNA polymerase and the promoter

b.

not affected by promoter mutations

c.

bound more tightly when repressors are present

d.

not affected by activator proteins

Discuss
Answer: (a).in equilibrium with free RNA polymerase and the promoter
Q22.
Transcription begins

a.

at the start codon

b.

upstream from the start codon

c.

downstream from the start codon

d.

none of these

Discuss
Answer: (b).upstream from the start codon
Q23.
Transcription results in

a.

an amino acid chain

b.

messenger RNA

c.

complementary DNA

d.

Okazaki fragments

Discuss
Answer: (b).messenger RNA
Q24.
RNA polymerase holoenzyme initiates transcription which involves

a.

recognition of the -10 sequence and -35 sequence

b.

recognition of the -10 sequence only

c.

recognition of the -35 sequence only

d.

none of the above

Discuss
Answer: (a).recognition of the -10 sequence and -35 sequence
Q25.
The transcriptional regulatory proteins in eukaryotes which induce transcription usually have

a.

at least two distinct domains of protein structure, a DNA binding domain and an activation domain

b.

at least two distinct domains of protein structure and a DNA binding domain

c.

at least one distinct domains of protein structure, a DNA binding domain and an activation domain

d.

none of these

Discuss
Answer: (a).at least two distinct domains of protein structure, a DNA binding domain and an activation domain
Q26.
In prokaryotes, transcription is

a.

terminated by the stop codon

b.

terminated by a protein called rho

c.

terminated by a poly A sequence

d.

terminated by a start codon

Discuss
Answer: (b).terminated by a protein called rho
Q27.
In eukaryotes, there are three different RNA polymerases. The RNA polymerase responsible for transcription of mRNA is

a.

RNA polymerase I

b.

RNA polymerase II

c.

RNA polymerase III

d.

none of these

Discuss
Answer: (b).RNA polymerase II
Q28.
The nucleons of eukaryotic cell has

a.

RNA polymerase I

b.

RNA polymerase II

c.

RNA polymerase III

d.

all of these

Discuss
Answer: (d).all of these
Q29.
Upstream regions which are essential for correct transcription are called

a.

enhancers

b.

start codons

c.

promoters

d.

transcription factors

Discuss
Answer: (c).promoters
Q30.
Transcription of each set of rRNA genes by RNA polymerasel produces

a.

a single 45S rRNA precursor molecule

b.

a single 5S rRNA precursor molecule

c.

a single 18S rRNA precursor molecule

d.

a single 28S rRNA precursor molecule

Discuss
Answer: (a).a single 45S rRNA precursor molecule
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