Plant Breeding Multiple Choice Questions For Competitive Exam

Question 01. Mendel studied….?

(a). Trait inheritance.
(b). Gene inheritance.
(c). Variation inheritance.
(d). Genetic inheritance.

Question 02. Polyploid plants can arise spontaneously in nature by..?

(a). Meiotic failure.
(b). Mitotic failure.
(c). Fusion of unreduced gametes.
(d). All of the above.

Question 03. Which is an allopolyploid?

(a). Canola.
(b). Cotton.
(c). Both a and b.
(d). None of the above

Question 04. Consider about speciation via polyploidy..

1. A diploid cell undergoes failed meiosis.
2. Producing diploid gametes.
3. Producing triploid gametes.
4. Which self fertilize to produce tetraploid zygotes.

(a). Only 1 and 2 are true.
(b). Only 2 and 3 are true.
(c). Only 1, 2 and 4 are true.
(d). Only 1, 3 and 4 are true.

Question 05. ‘On the Origin of Species’s written by..?

(a). Charles Darwin.
(b). Mendel.
(c). Jeoen Bakker.
(d). Meindent Boon.

Question 06. Who is considered as the father of genetics..?

(a). Gregor Mendel.
(b). Charles Darwin.
(c). Anton de Bary.
(d). Oliver Smith.

Question 07. The term genetics was given by..?

(a). Bovery.
(b). Y. L. Ping.
(c). Suttan.
(d). Beston.

Question 08. In pathogenesis….?

(a). Embryo originates from unfertilized eggs.
(b). Embryo originates from fertilized eggs.
(c). Both a and b.
(d). None of the above.

Question 09. In parthenocarpy..?

(a). Fruits develop after fertilization.
(b). Fruits develop without fertilization.
(c). Fruit remains underdeveloped.
(d). None of the above.

Question 10. Jagannath is a mutant variety of..?

(a). Wheat.
(b). Maize.
(c). Rice.
(d). Barley.

Question 11. Xenia is the immediate effect of pollen on the character of..?

(a). Endosperm.
(b). Stamen.
(c). Anther.
(d). None of the above.

Question 12. A haploid chromosome in an otherwise normal diploid individual is..?

(a). Double monosome.
(b). Monosome.
(c). Polyploid.
(d). None of the above.

Question 13. F1 seed are used for the cultivation of..?

(a). Hybrid varieties.
(b). Composite varieties.
(c). Both a and b.
(d). None of the above.

Question 14. The hybrid vigour is expected to be …. pronounced in bajara than in bengal gram?

(a). More.
(b). Less.
(c). Equal (ly).
(d). All of the above.

Question 15. In the condition of of epistatis..

(a). Single gene influences one trait.
(b). More than single gene influence one trait.
(c). Single gene influence ore than one trait.
(d). Multiple genes influence multiple traits.

Question 16. Which is true about triticale

(a). It has high degree of fertility.
(b). It is amphidiploid with 54 chromosomes.
(c). It is a cross between Secale cereale and Tritium vulgare.
(d). None of the above.

Question 17. Generally, the components of synthetic population would have already been tested for..

(a). General combining ability.
(b). Specific combining ability.
(c). Both a and b.
(d). None of the above.

Question 18. …. is responsible for poor fruit set in custard apple?

(a). Self-incompatibilty.
(b). Heterostyly.
(c). Both a and b.
(d). Dichogamy.

Question 19. Which is the base pair of a DNA molecule?

(a). Adenine – Uracil.
(b). Thymine – guanine.
(c). Cystine – guanine.
(d). Uracil – guanine.

Question 20. DNA exists as a double helix as a result of …. between nucleosides?

(a). Hydrogen bonding.
(b). Carbon bonding.
(c). Acid bonding.
(d). None of the above.

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