MCQ on Genetics and Plant Breeding for various Agriculture Exams Part - 11

1. In case of clonal/vegetatively propagated crop which type of cell division occurred?
   (a) Mitosis
   (b) Meiosis
   (c) Both A and B
   (d) Uncertain

2. Origin of genetic variation within clones is due to
   (a) Bud mutation
   (b) Occasional sexual reproduction
   (c) Mechanical mixer
   (d) All of these

3. Cell of an individual that consist two or more different genotypes is known as
   (a) Chimera
   (b) Mericlinal
   (c) Clone
   (d) Periclinal

4. Genetic constitution of clone is
   (a) Heterozygous & homogeneous
   (b) Homozygous & homogeneous
   (c) Homozygous & heterogeneous
   (d) Heterozygous & heterogeneous

5. Clone is maintained by
   (a) Sexual reproduction
   (b) Self pollination
   (c) Asexual reproduction
   (d) Cross pollination

6. Asexualy propagated crops differ from sexual propagated with respect to
   (a) Heterozygosity
   (b) Breeding material
   (c) Identical with each other
   (d) Homozygosity

7. Clone degeneration leads to
   (a) Increase vigour & productivity
   (b) Homozygosity
   (c) Heterozygosity
   (d) Decrease vigour & productivity

8. An allopolyploids which arise by combining genomes of two diploid species is known as
   (a) Diploidization
   (b) Autosyndesis
   (c) Autosyndesis
   (d) Amphidiploid

9. Which of the following method considered as a special breeding method?
   (a) Back cross breeding
   (b) Ploidy breeding
   (c) Pedigree breeding
   (d) All of these

10. Triticale was developed from cross between
    (a) Wheat and Barley
    (b) Wheat and Maize
    (c) Wheat and Rice
    (d) Wheat and Rye

11. The Raphanobrassica result due to combination of
    (a) Radish and Cauliflower
    (b) Radish and Cabbage
    (c) Radish and Mustard
    (d) Radish and Turnip

12. A mutation arise due to treatment of mutagenic agents
    (a) Spontaneous mutation
    (b) Induced mutation
    (c) Somatic mutation
    (d) None of these

13. The process of shifting hydrogen atom from one position to another in purine or pyrimidine base is called
    (a) Base analogues
    (b) Radiation
    (c) Ionization
    (d) Tautamerization

14. Sharbati Sonara is mutant variety of
    (a) Rice
    (b) Maize
    (c) Barley
    (d) Wheat

15. A numerical change in entire genome is called
    (a) Haploid
    (b) Euploidy
    (c) Heteroploidy
    (d) Hypoploidy

16. Change of one or few chromosomes in entire genome is called
    (a) Haploidy
    (b) Aneuploidy
    (c) Euploidy
    (d) Allopolyploid

17. An individual having more than two basic set of chromosomes
    (a) Haploidy
    (b) Aneuploidy
    (c) Heteroploidy
    (d) Polyploidy

18. Polyploids which originate by multiplication of chromosome of a single species
    (a) Amphidiploid
    (b) Autopolyploidy
    (c) Diploidization
    (d) Allopolyploids

19. A polyploid individual which combines complete genome from two or more species
    (a) Amphidiploid
    (b) Autopolyploidy
    (c) Diploidization
    (d) Allopolyploids

20. The process by which a polyploid species behaves like a diploid species is called
    (a) Disomic
    (b) Autopolyploidy
    (c) Diploidization
    (d) Allopolyploids

21. Which of the following is an example of artificial alloploids
    (a) Rice
    (b) Triticale
    (c) Bananas
    (d) Grapes

22. Which of the following are types of distant hybridization?
    (a) Interspecific and Intervarietal hybridization
    (b) Interspecific & Intergeneric hybridization
    (c) Intraspecific and Intrageneric hybridization
    (d) Interspecific and Intraspecific hybridization

23. Intrageneric hybridization give rise to type of hybrid
    (a) Fully fertile
    (b) Fully sterile
    (c) Partially fertile
    (d) All of these

24. The first intergeneric cross between wheat and rye was made by
    (a) Rimpu (1890)
    (b) Shull (1914)
    (c) Karpenchenko (1928)
    (d) Kolreuter (1617)

25. Intergeneric cross between radish and cabbage was made by
    (a) Rimpu (1890)
    (b) Shull (1914)
    (c) Karpenchenko (1928)
    (d) Kolreuter (1617)