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.

Hybrid dysgenesis is caused by which of the following transposable element?

A. Non-composite transposon
B. LINE
C. P-element
D. Ac-element
Answer» D. Ac-element
2.

Which of the following about the P-element is false?

A. 25 bp inverted repeats
B. 2907 bp long element
C. Encodes for transposase
D. DNA transposon
Answer» B. 2907 bp long element
3.

Which of the following is a non-composite transposon?

A. Tn5
B. Tn10
C. Tn3
D. Tn9
Answer» D. Tn9
4.

The central block of the composite transposable element consists a gene for __________

A. Transposase
B. Antibiotic resistance
C. Integrase
D. Lactamase
Answer» C. Integrase
5.

Transposase restriction mechanism of the IS element restricts the transposon and the target DNA in a combination of which of the following?

A. Blunt end cut for transposon and sticky end cut for target DNA
B. Blunt end cut for both transposon and target DNA
C. Sticky end cut for transposon and blunt end cut for target DNA
D. Sticky end cut for both transposon and target DNA
Answer» B. Blunt end cut for both transposon and target DNA