Explore topic-wise MCQs in Molecular Biology.

This section includes 9 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.

How the host specificity is achieved by the specificity gene of the Ti plasmid?

A. Opine released by a wounded plant
B. Acetosringone released by bacteria
C. Acetosringone released by a wounded part of the plant
D. Opine released by bacteria
Answer» D. Opine released by bacteria
Discussion
2.

Introduction of new gene through Ti plasmid should be done in ____________

A. Fully grown plant
B. A sapling
C. Germ cells
D. Callus
Answer» E.
Discussion
3.

Transformants of pBIN19 are selected by growing them in solid agar media with ampicillin.

A. True
B. False
Answer» C.
Discussion
4.

The Ti cloning vector pBIN19 contains which of the following genes?

A. Tetracycline resistant gene
B. Stress resistant gene
C. Kanamycin resistant gene
D. Ampicillin resistant gene
Answer» D. Ampicillin resistant gene
Discussion
5.

Insertion of the T-DNA into the host genome depends on the T-DNA itself.

A. True
B. False
Answer» C.
Discussion
6.

Disarming of Ti plasmid is ____________

A. Removal of the Virulence region
B. Removal of the 25 base pair repeats
C. Removal of the T-DNA
D. Removal of the Host specificity region
Answer» D. Removal of the Host specificity region
Discussion
7.

Which of the following does not play any role in the infection of plant cell by the Ti plasmid of A. tumefaciens?

A. T-DNA
B. Virulence region
C. Host specificity region
D. 25 base pair repeats
Answer» B. Virulence region
Discussion
8.

The binary vector strategy uses two different vectors for the production of the single chimera molecule by recombination.

A. True
B. False
Answer» C.
Discussion
9.

The main problem in the formation of the chimera Ti plasmid is _____________

A. It is unstable
B. Large size
C. High virulence
D. No unique restriction site
Answer» E.
Discussion