Modifications and Mutagenesis MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Modifications and Mutagenesis, a fundamental topic in the field of Genetic Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Modifications and Mutagenesis 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 Modifications and Mutagenesis mcq questions that explore various aspects of Modifications and Mutagenesis problems. Each MCQ is crafted to challenge your understanding of Modifications and Mutagenesis principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Genetic Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Modifications and Mutagenesis MCQs are your pathway to success in mastering this essential Genetic Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Modifications and Mutagenesis. 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 Modifications and Mutagenesis knowledge to the test? Let's get started with our carefully curated MCQs!

Modifications and Mutagenesis MCQs | Page 6 of 8

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Q51.
If methods are based on cellular processes that lead to inactivation of gene expression by affecting the RNA, then it is called as ___________

a.

transcriptional

b.

pre-transcriptional

c.

post-transcriptional

d.

translational

Discuss
Answer: (c).post-transcriptional
Q52.
Choose the incorrect statement for the method based on antisense RNA.

a.

RNA is synthesized complementary to the sequence of the gene which is to be inactivated

b.

It is achieved by placing a DNA sequence which encodes RNA complementary to the RNA to be inactivated

c.

Expression of the endogenous gene is diminished

d.

This method is preferred over gene disruption has gene inactivation can be achieved completely

Discuss
Answer: (d).This method is preferred over gene disruption has gene inactivation can be achieved completely
Q53.
The method of post transcriptional gene silencing is particularly useful in ___________

a.

plants

b.

animals

c.

insects

d.

microorganisms

Discuss
Answer: (a).plants
Q54.
Down regulation of expression of endogenous genes by transformation with constructs that would generate sense RNA, rather than anti-sense RNA is known as ___________

a.

suppression

b.

co-suppression

c.

multisuppression

d.

anti-suppression

Discuss
Answer: (b).co-suppression
Q55.
In some organisms, presence of double stranded RNAs leads to breakdown of corresponding single stranded mRNA.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q56.
Double stranded RNA is cleaved by a nuclease called as Dicer and small fragments are generated known as ___________

a.

short interfering RNAs

b.

long interfering RNAs

c.

short interspersed RNAs

d.

long interspersed RNAs

Discuss
Answer: (a).short interfering RNAs
Q57.
The process of RNA inactivation by siRNAs is termed as ___________

a.

RNA silencing

b.

RNA interference

c.

Short RNA inactivation

d.

RNA disfunction

Discuss
Answer: (b).RNA interference
Q58.
DNA _________ is also a method for gene silencing through short RNAs.

a.

acetylation

b.

phosphorylation

c.

methylation

d.

acylation

Discuss
Answer: (c).methylation
Q59.
siRNAs can either be introduced directly or by microinjection.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q60.
Introduction into host organism can also be done by using a DNA construct, which when transcribed, generates an RNA which is _________

a.

circular

b.

linear

c.

double stranded

d.

self-complementary

Discuss
Answer: (d).self-complementary
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