Vector Systems MCQs

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

Vector Systems MCQs | Page 7 of 9

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Q61.
Which of the following is not a consequence of deletion in the b region?

a.

Excision of the prophage on induction is prevented

b.

It reduces the amount of endogenous phage DNA in the packaging mix

c.

It reduces the amount of exogenous phage DNA in the packaging mix

d.

It reduces the level of background non-recombinant phage

Discuss
Answer: (c).It reduces the amount of exogenous phage DNA in the packaging mix
Q62.
If a single system is used for packaging, there are increased chances of endogenous material being packed.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q63.
The cI function can be scanned in order to check whether the recombinants are present or not. Which of the following doesn’t hold true?

a.

The cI protein is required for the formation of lysogen

b.

The plaques formed are turbid in the case if the cI gene is active

c.

The plaques formed are clear in the case if the cI gene is inactive

d.

hflA mutant host reduces the amount of cII stability

Discuss
Answer: (d).hflA mutant host reduces the amount of cII stability
Q64.
What is the function of red and gam gene products?

a.

It promotes the growth of the phage in the E. coli cells which are lysogenic for bacteriophage P1

b.

It inhibits the growth of the phage in the E. coli cells which are lysogenic for bacteriophage P2

c.

It inhibits the growth of the phage in the E. coli cells which are lytic for bacteriophage P1

d.

It activates the growth of the phage in the E. coli cells which are lytic for bacteriophage P2

Discuss
Answer: (b).It inhibits the growth of the phage in the E. coli cells which are lysogenic for bacteriophage P2
Q65.
The red and gam genes are removed in which type of phages?

a.

Substitution phage

b.

Replacement and substitution phages both

c.

Replacement phage

d.

Substitution is preferred over replacement phage

Discuss
Answer: (c).Replacement phage
Q66.
Phages which are designated as spi-are __________

a.

red+ gam+

b.

red+ gam-

c.

red- gam+

d.

red- gam-

Discuss
Answer: (d).red- gam-
Q67.
Choose the correct statement for RecBCD nuclease.

a.

It promotes rolling circle replication

b.

It is blocked by Gam protein

c.

It blocks theta mode of replication

d.

It is blocked by Red protein

Discuss
Answer: (b).It is blocked by Gam protein
Q68.
The essential sites for recombination are known as __________

a.

chi sites

b.

rec sites

c.

gam sites

d.

red sites

Discuss
Answer: (a).chi sites
Q69.
The replication rate remains the same for all the phages irrespective of what sequence is there in the phage.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (b).False
Q70.
There is a limit on upper size of the DNA to be packed. Choose the correct statement with respect to phages in this context.

a.

There is some phage DNA lost in this process

b.

The phages are known as transformed phages

c.

These type of phages can’t be selected and harvested

d.

Lambda is not a special attachment site

Discuss
Answer: (a).There is some phage DNA lost in this process
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