MCAER PG CET 2026 GENETICS & PLANT BREEDING

 

MCAER PG CET 2026 – Genetics & Plant Breeding Mock Test

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1. The 15:1 phenotypic ratio in F₂ generation is an example of: (PYQ 2023)

Complementary gene action Duplicate dominant epistasis Recessive epistasis Polygenic inheritance

2. The term “linkage” was first explained by:

Bateson and Punnett Morgan Mendel Johanssen

3. In plant breeding, heterosis is best exploited in:

Self-pollinated crops Cross-pollinated crops Apomictic crops Vegetatively propagated crops

4. The concept of pure line selection was introduced by: (PYQ 2021)

Mendel Johannsen Morgan Shull

5. Cytoplasmic inheritance is mainly controlled by genes present in:

Nucleus Mitochondria and chloroplast Ribosomes Golgi bodies

6. Backcross breeding is primarily used for: (PYQ 2020)

Developing hybrid varieties Transferring a specific gene Increasing heterosis Mutation breeding

7. The phenomenon where one gene masks the effect of another gene is called:

Dominance Epistasis Linkage Codominance

8. The smallest unit of mutation in genetics is known as:

Recon Muton Cistron Operon

9. Polygenic inheritance was first demonstrated in:

Maize kernel colour Wheat kernel colour Pea seed colour Rice grain shape

10. Male sterility is mainly used in plant breeding for: (PYQ 2022)

Mutation breeding Hybrid seed production Pure line selection Clonal propagation