MCAER PG CET 2026
Botany | Genetics & Plant Breeding

Time Left: 100 sec

1. The phenomenon where heterozygote shows superiority over both homozygotes is called:

Epistasis Overdominance Inbreeding depression Complementation

2. The genetic base of hybrid vigor is mainly explained by which hypothesis?

Dominance hypothesis Linkage hypothesis Mutation hypothesis Cytoplasmic inheritance

3. Which type of pollination ensures maximum genetic variability in plants?

Autogamy Cleistogamy Xenogamy Geitonogamy

4. Cytoplasmic male sterility (CMS) is most commonly used in hybrid seed production of:

Wheat Rice Maize All of the above

5. The Hardy-Weinberg equilibrium assumes:

No mutation Random mating Large population All of the above

6. PYQ (MCAER PG CET 2023) The gene transfer through pollen is known as:

Vertical gene transfer Horizontal gene transfer Pollen mediated gene flow Cytoplasmic transfer

7. PYQ (MCAER PG CET 2022) Which plant breeding method is best suited for cross pollinated crops?

Pure line selection Mass selection Pedigree method Backcross method

8. PYQ (MCAER PG CET 2021) The term ideotype in plant breeding was proposed by:

Norman Borlaug Donald Mendel Fisher

9. Double haploid plants are mainly produced using:

Anther culture Somatic embryogenesis Protoplast fusion Callus culture

10. The process of transferring a specific gene from one genotype into another repeatedly is:

Recurrent selection Backcross breeding Hybridization Mutation breeding