Molecular Biology MCQ – MCQ on CRISPR

What does the cas9 protein do?

Prevents Viruses From Entering Bacteria

A

Cut RNA

B

Cut DNA

C

Binds To RNA

D

Next Question

How does the guide RNA help the cell know where to cut the DNA?

Guide RNA Helps To Find The PAM

A

Guide RNA Is Complementary To The DNA Sequence

B

Guide RNA Always Binds To The Same Sequence Of DNA

C

Like Restriction Sites, They Are Always Palindromes

D

Next Question

What is the role of the guide RNA?

It Helps The Cell Repair The DNA

A

Ensures That The Cas9 Enzyme Cuts At The Right Point In The Genome

B

Recognizes PAM Sequences And Opens Up The DNA

C

Makes A Cut Across Both Strands Of The DNA

D

Next Question

A PAM is

A 15-20 Bp Sequence Snipped From A Viral Genome That Serves As A Tracer DNA To Locate Viruses Later

A

A 3 Bp Sequence That Adjacent To Viral DNA In A CRISPR Array

B

A Girl’s Name Popular In The 1960s

C

Where The DNA Is Cut

D

Next Question

Why do bacteria have CRISPR? Check all that apply.

To Be Able To Remember Which Viruses They Have Been Infected With

A

To Be Able To Edit Virus DNA

B

To Cut Apart Virus DNA Thereby Stopping The Virus Infection

C

To Be Able To Edit Their Own DNA

D

Next Question

CRISPR can edit DNA. What organisms naturally has CRISPR?

Viruses

A

Humans

B

Plants

C

Bacteria

D

Next Question

What does the acronym CRISPR stand for?

Controlled Reservative Image Spectacle Palindromic Recounts

A

Clustered Regularly-Interspaced Short Palindromic Repeats

B

Next Question

CRISPR-Cas9 is a type of __ system found in bacteria

Digestive

A

Endocrine

B

Circulatory

C

Immune

D

Next Question

CRISPR-Cas9 was discovered in which of the following organisms?

Protists

A

Fungi

B

Bacteria

C

Viruses

D

Next Question

Scientists have adapted it to turn it into a biotechnology tool for _ DNA.

Building

A

Editing

B

Destroying

C

Synthesizing

D

Next Question

What type of RNA is used as a GPS of sorts, to find or locate specific genes?

MRNA

A

RRNA

B

GRNA

C

TRNA

D

Next Question

The enzyme portion of this process is called __.

CRISPR

A

Replicase

B

Lysozyme

C

Cas9

D

Next Question

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