Explore topic-wise MCQs in Cytogenetics.

This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Cytogenetics knowledge and support exam preparation. Choose a topic below to get started.

1.

Which factors lead to disassociation of the ribosomal subunits?

A. RRF and Ef-G
B. IF1 and IF2
C. Rf1 and RRF
D. IF-1 and IF-3
Answer» E.
2.

Which factor or factors lead to the ultimate disassembly of the ribosomal complex?

A. RF1 and RF3
B. RF3 and RRF
C. RRF and EF-G
D. RF2 and EF-G
Answer» D. RF2 and EF-G
3.

Binding of RF3.GTP to the ribosome helps in release of the ____________

A. Peptide
B. Release factor 1
C. tRNA
D. Ribosome
Answer» C. tRNA
4.

Which of these factors can recognize the UAA stop codon?

A. RF1
B. RF3
C. RRF
D. Ef-G
Answer» B. RF3
5.

BINDING_OF_RF3.GTP_TO_THE_RIBOSOME_HELPS_IN_RELEASE_OF_THE_____________?$

A. Peptide
B. Release factor 1
C. tRNA
D. Ribosome
Answer» C. tRNA
6.

WHICH_OF_THESE_FACTORS_CAN_RECOGNIZE_THE_UAA_STOP_CODON??$

A. RF1
B. RF3
C. RRF
D. Ef-G
Answer» B. RF3
7.

Which factors lead to disassociation of the ribosomal subunits?$

A. RRF and Ef-G
B. IF1 and IF2
C. Rf1 and RRF
D. IF-1 and IF-3
Answer» E.
8.

Which factor or factors lead to the ultimate disassembly of the ribosomal complex?$

A. RF1 and RF3
B. RF3 and RRF
C. RRF and EF-G
D. RF2 and EF-G
Answer» D. RF2 and EF-G
9.

How many factors play a role in termination of translation?

A. 1
B. 3
C. 5
D. 7
Answer» D. 7
10.

If a peptide is 160 amino acids long, How many GTP and ATP molecules does it use for elongation?

A. 318 GTP + 160 ATP
B. 478 GTP + 160 ATP
C. 320 GTP+ 320 ATP
D. 478 GTP+ 320 ATP
Answer» B. 478 GTP + 160 ATP
11.

According to the hybrid state model, if we consider the hybrid state of a tRNA such that its base is bound to the P site of 30S subunit, where will its head be bound?

A. A site of 50S
B. P site of 50S
C. E site of 50S
D. Unbound
Answer» D. Unbound
12.

What is the rate of translation in prokaryotes under adequate conditions?

A. 10 amino acid per second
B. 20 amino acid per second
C. 30 amino acid per second
D. 40 amino acid per second
Answer» C. 30 amino acid per second
13.

The E site of the ribosome has a high affinity for___________

A. Peptide bound tRNA
B. Ester linked tRNA
C. Acylated tRNA
D. Deacylated tRNA
Answer» E.
14.

After the Ef-G cycle the A site_________

A. Houses peptide bound tRNA
B. Amino acid bound tRNA
C. Empty
D. Uncharged trNA
Answer» D. Uncharged trNA
15.

EF-Tu GTP complex is ____________

A. Very unstable
B. Unstable
C. Stable
D. Very stable
Answer» E.
16.

Which of the elongation factor binds to amino acyl tRNA?

A. Ef-Tu
B. Ef-Ts
C. Ef-G
D. GDP
Answer» B. Ef-Ts