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 2 of 21

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Q11.
Which of the following techniques was carried out by Nirenberg and Matthaei in 1961 to determine the first codon?

a.

In vitro synthesis of a polypeptide using UUUUU

b.

Labeled peptide binding to a ribosome

c.

Mixed co-polymer mRNA synthesis

d.

none of the above

Discuss
Answer: (a).In vitro synthesis of a polypeptide using UUUUU
Q12.
Bacterial protein called catabolic activator protein (CAP) is an example of

a.

negative control of gene expression

b.

positive control of gene expression

c.

second type of positive control of gene expression

d.

none of the above

Discuss
Answer: (c).second type of positive control of gene expression
Q13.
How many different codons are possible?

a.

3

b.

20

c.

64

d.

An infinite number

Discuss
Answer: (c).64
Q14.
The genetic code is

a.

universal

b.

universal except for rare exceptions in mitochondria and some protozoa

c.

species-specific

d.

kingdom-specific

Discuss
Answer: (b).universal except for rare exceptions in mitochondria and some protozoa
Q15.
Which of the following has been used as an evidence that primitive life forms lacked both DNA and enzymes?

a.

RNA can both code genetic information and act as a catalyst

b.

DNA and enzymes are only present in the most advanced cells

c.

Advanced cells lack RNA

d.

All of the above

Discuss
Answer: (a).RNA can both code genetic information and act as a catalyst
Q16.
Translation begins

a.

at the replication fork

b.

on the lagging strand

c.

at the start codon

d.

in nucleus

Discuss
Answer: (c).at the start codon
Q17.
Transcription factors are

a.

promoters

b.

proteins which bind to DNA and regulate transcription

c.

TATA boxes

d.

CATT boxes

Discuss
Answer: (b).proteins which bind to DNA and regulate transcription
Q18.
The major function of RNA polymerase's sigma factor is

a.

recognition of the translational stop sequence

b.

recognition of the transcriptional start sequence

c.

recognition of the transcriptional stop sequence

d.

recognition of the translational start sequence

Discuss
Answer: (b).recognition of the transcriptional start sequence
Q19.
Most transcripts of protein coding genes are cleaved

a.

at the 3' end just after a poly adenylation signal

b.

at the 3' end just before a poly adenylation signal

c.

at the 5' end immediately after a poly adenylation signal

d.

at the 5' end immediately before a poly adenylation signal

Discuss
Answer: (a).at the 3' end just after a poly adenylation signal
Q20.
RNA is synthesized on a DNA template in a process called __________ , which utilizes the enzyme __________

a.

translation, RNA polymerase

b.

transcription, DNA polymerase

c.

transcription, RNA polymerase

d.

replication, DNA polymerase

Discuss
Answer: (c).transcription, RNA polymerase
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