Explore topic-wise MCQs in Molecular Biology.

This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Molecular Biology knowledge and support exam preparation. Choose a topic below to get started.

1.

In trans-splicing the excised intron forms a lariat structure.

A. True
B. False
Answer» C.
2.

The transesterification reaction is ATP independent.

A. True
B. False
Answer» B. False
3.

The second transesterification reaction occurs between __________

A. The 3 splicing site of intron and 5 splice site of intron
B. The 3 splicing site of intron and the branch point site
C. The 5 splicing site of intron and 3 end of exon
D. The 5 end of exon and the 3 splice site
Answer» E.
4.

The first transesterification reaction between the branch point site and the 5 splice site is a __________ reaction.

A. SN1
B. SN2
C. E1
D. E2
Answer» C. E1
5.

The 3 end of an intron is marked by __________

A. Donor site
B. Acceptor site
C. AT rich site
D. Branch point site
Answer» C. AT rich site