Cytogenetics Mock Test 2

10%

Question 1 of 10

1. How many stem loop structures play important role in complete system of tryptophan gene regulation?

Question 1 of 10

Question 2 of 10

2. Choose the wrong answer.

The 5’-P attacks the 3’-OH of the intron

Group II self-splicing RNA splices better when proteins are added

The A base saves the 5’-P of the intron by forming bond which saves requirement of ATP

In self splicing group I G base makes this lariet structure

Question 2 of 10

Question 3 of 10

3. If the events in post transcriptional modification are listed as-
i) Polyadenylation ii) capping iii) splicing
What would be the correct sequence?

ii->i->iii

iii->ii->i

i->ii->iii

i->iii->ii

Question 3 of 10

Question 4 of 10

4. All the RNA polymerases share 5 common subunits, which are present in all the three polymerases and are all alike. State whether the statement is true or false.

False

True

Question 4 of 10

Question 5 of 10

5. Which of these SIR proteins are having HDAC activity?

SIR4

SIR1

SIR2

SIR3

Question 5 of 10

Question 6 of 10

6. The absence of which factor will prevent TFIIH and TFIIE recruitment?

Question 6 of 10

Question 7 of 10

7. The poly a tail protects the 3’ end from____________

Export

3’->5’ exonuclease

Translation

5’->3’ exonuclease

Question 7 of 10

Question 8 of 10

8. Which of this is untrue about TBP?

It is sequence independent

It is a part of TFIID

It makes a kink in the DNA

It is orientation independent

Question 8 of 10

Question 9 of 10

9. Intermediate sequences in the intron are unimportant for splicing.

True

False

Question 9 of 10

Question 10 of 10

10. Which of the following does not directly interact with DNA?

PABPII

CPSF

PAP

CStF

Question 10 of 10