Regulating Gene Expression in Eukaryotes MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Regulating Gene Expression in Eukaryotes, a fundamental topic in the field of Cytogenetics. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Regulating Gene Expression in Eukaryotes MCQs are designed to help you grasp the core concepts and excel in solving problems.

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Regulating Gene Expression in Eukaryotes MCQs | Page 4 of 8

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Q31.
Which of the following is not a normal modification of the rRNA primary transcript?

a.

Conversion of U base to Pseudo uridine

b.

Methylation of the 2’- OH region of specific rRNA bases

c.

Cleavage of the intervening regions by exonucleases

d.

Proteins modulating the cleavage

Discuss
Answer: (d).Proteins modulating the cleavage
Q32.
Bacterial pre rRNA transcript has ________________

a.

23S 4S 16S 5S

b.

16S 4S 23S 5S

c.

16S 5S 23S

d.

23S 16S 5S

Discuss
Answer: (b).16S 4S 23S 5S
Q33.
Which one of the following characters doesn’t go along with tRNA?

a.

Its primary transcript is processed by proteins

b.

The cleavage at the 5’ and 3’ end of the intron is simultaneous

c.

The introns are seen in yeast and they are larger than exons

d.

ATP and GTP hydrolysis joins the two RNA halves at the two ends of the introns

Discuss
Answer: (c).The introns are seen in yeast and they are larger than exons
Q34.
The 5’ end of the tRNA transcript is cleaved by____________

a.

RNase K

b.

Exonuclease VII

c.

Endonucleace I

d.

Rnase P

Discuss
Answer: (d).Rnase P
Q35.
Which of the following is not a normal processing step of the tRNA?

a.

The 3’ end U is replaced by CCA

b.

The Purines are methylated and isopentyl groups are transferred to them

c.

The 3’ OH is methylated

d.

U bases at specific sites are converted to pseudo uridine, ribo thimidine or dihydrouridine

Discuss
Answer: (c).The 3’ OH is methylated
Q36.
The rRNA primary transcript is located in________

a.

Nucleus

b.

NOR

c.

Cytoplasm

d.

Nuclear pore

Discuss
Answer: (b).NOR
Q37.
RNA pol II will be isolated from the nuclear parts outside the nucleolus.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q38.
The 45S rRNA transcript is first broken into ______________

a.

32S and 20S

b.

19S and 36S

c.

6S and 40S

d.

32S, 20s and 7S

Discuss
Answer: (a).32S and 20S
Q39.
The proteins that are imported have a _______________

a.

NES

b.

NLS

c.

FG rich domain

d.

Have to be less than 45KDa

Discuss
Answer: (b).NLS
Q40.
The basket like structure of filaments in NPC has _________ filaments and is located in ____________ side of the nuclear membrane.

a.

6, nuclear

b.

8, nuclear

c.

6, cytosolic

d.

8, cytosolic

Discuss
Answer: (b).8, nuclear
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