GPB MCQ Quiz 158 for ICAR JRF/SRF/ARS Exam Preparation

Basic requirements for tissue culture technique are

A) Aseptic condition, Control of temperature

B) Proper culture media and Sub culturing

C) Aseptic condition and Proper culture media

D) All of the above

Explanation: Tissue culture requires aseptic conditions, proper culture media, control of temperature, and sub-culturing to ensure successful growth and propagation.

The main problem in micropropagation technique is

A) Somaclonal variation

B) Variation in chromosome number due to continuous sub-culturing

C) Both

D) None of the above

Explanation: Both somaclonal variation and chromosomal variations due to continuous sub-culturing are major challenges in micropropagation.

The trait governed by non-additive genes is

A) Oligogenic traits

B) Polygenic traits

C) Both

D) None of the above

Explanation: Oligogenic traits are controlled by a few non-additive genes, leading to discrete variations in the trait.

Of the followings which is/are the cytoplasmic inheritance

A) Maternal effects

B) Inherence due to infective particles

C) Cytoplasmic inheritance

D) All of the above

Explanation: Cytoplasmic inheritance includes maternal effects, inheritance via infective particles, and other cytoplasmic factors.

Synthesis occurs only during interphase in

A) Cytoplasmic DNA

B) Nuclear DNA

C) Both

D) None of the above

Explanation: Nuclear DNA replication occurs only during the interphase of the cell cycle, prior to cell division.

Type of cytoplasmic inheritance is/are

A) Plasmid inheritance

B) Mitochondrial inheritance

C) Both

D) None of the above

Explanation: Cytoplasmic inheritance can occur through plasmids or mitochondria, both of which are transmitted via the cytoplasm rather than the nucleus.

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