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Post transcriptional modifications

Authored by Aruna Kumar

Science

University

Used 57+ times

Post transcriptional modifications
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The expressed sequences of eukaryotic pre-mRNAs are known as

Exons

Introns

Interwening sequences

regulatory sequences

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Some eukaryotic rRNAs are self-splicing indicates that RNA can act as an ______.

ribosomes

ribozyme

proteinases

none of the above

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

___________ have well defined 3′ ends terminating in poly(A) tails of ~ 250 nucleotides.

mRNA

tRNA

rRNA

none of the above

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is not a type of RNA processing?

Poly A tail

splicing

5' CAP

removal of exons

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The first post transcriptional RNA processing event is __________

Tailing

editing

capping

splicing

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

“A” are added to the nascent RNA in the 3’ end during Polyadenylation by enzyme

Poly A polymerase

RNA Polymerase

Taq Polymerase

DNA polymerase

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Capping is done by the addition of __________

Methylated A

Methylated G

Methylated C

Methylated T

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