Microbial Genetics MCQs

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

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

Microbial Genetics MCQs | Page 20 of 21

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Q191.
The promoter on an expression vector used to overproduce proteins in bacteria is

a.

a bacterial promoter

b.

expressed both in bacteria and mammalian cells

c.

not a regulated promoter

d.

the natural promoter of the gene being cloned

Discuss
Answer: (a).a bacterial promoter
Q192.
Differentiation of four different bases in automated sequencing systems is that each base has

a.

different radioactive tag

b.

cytosine at start

c.

unique antibody bound to it

d.

distinctive fluorescent tag

Discuss
Answer: (d).distinctive fluorescent tag
Q193.
Which of the following infection(s) can be diagnosed by the use of polymerase chain reaction?

a.

HIV-1 and HIV-2 viruses

b.

Hepatitis B virus

c.

Mycobacterium tuberculosis

d.

All of these

Discuss
Answer: (d).All of these
Q194.
Polymerase chain reaction basically consists of

a.

two steps

b.

three steps

c.

four steps

d.

five steps

Discuss
Answer: (b).three steps
Q195.
The PCR/sequencing approach to rRNA is most likely to give information about

a.

the species to which the bacteria are most closely related

b.

morphology of the bacterium

c.

the type of energy metabolism the bacterium has

d.

whether the bacterium is motile

Discuss
Answer: (a).the species to which the bacteria are most closely related
Q196.
The efficiency of amplification in PCR in later cycles is reduced due to

a.

reduction in substrate concentration

b.

insufficient enzyme and time to synthesize mass quantity of DNA

c.

build up of PCR product which competes with primers for hybrid formation

d.

all of these

Discuss
Answer: (d).all of these
Q197.
The original enzyme(s) used in PCR reaction is/are known as

a.

E. coli DNA polymerase

b.

E. coli RNA polymerase

c.

Taq polymerase

d.

all of these

Discuss
Answer: (a).E. coli DNA polymerase
Q198.
RNA populations can also be used as PCR templates after reverse transcription into

a.

c DNA

b.

t RNA

c.

m DNA

d.

r RNA

Discuss
Answer: (a).c DNA
Q199.
The cloning step in PCR/sequencing analysis of microbial communities is necessary for

a.

the amplification process

b.

preventing contamination by outside DNA

c.

separating the different rRNA gene sequences in the mixture

d.

none of these

Discuss
Answer: (c).separating the different rRNA gene sequences in the mixture
Q200.
If viral 'DNA' integrates in host cell chromosomes, with no progeny production, process is called

a.

Lytic cycle

b.

Lysogenic cycle

c.

Replicative cycle

d.

Translational cycle

Discuss
Answer: (b).Lysogenic cycle
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