Cytology, Genetics and Cytogenetics

JKPSC Assistant Professor (Botany) · Botany · 72 practice questions with answers and explanations: 9 Easy, 62 Medium, 1 Hard.

Sample questions

Sample Easy question 1

Mendel worked on:

  1. Rice
  2. Pea plants
  3. Maize
  4. Wheat
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Answer: B. Pisum sativum.

Sample Easy question 2

Genetic engineering of plants for pest resistance has used which gene?

  1. lac gene
  2. cry gene from Bacillus thuringiensis
  3. Hox gene
  4. Ti gene alone
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Answer: B. Cry proteins are insecticidal.

Sample Easy question 3

Mutation breeding uses:

  1. Fungicides
  2. Gamma rays
  3. Hormones
  4. Colchicine alone
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Answer: B. Induced mutations create variation.

Sample Medium question 4

Allopolyploidy results from:

  1. Hybridisation followed by chromosome doubling
  2. Doubling of one genome
  3. Mutation
  4. Loss of chromosomes
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Answer: A. Bread wheat is an allohexaploid.

Sample Medium question 5

Triticale is an allopolyploid of:

  1. Maize and wheat
  2. Rice and wheat
  3. Wheat and barley
  4. Wheat and rye
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Answer: D. It is the first man-made cereal.

Sample Medium question 6

Raphanobrassica was produced by:

  1. Karpechenko
  2. Mendel
  3. Morgan
  4. McClintock
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Answer: A. It combined radish and cabbage.

Sample Hard question 7

A multiple allele system is seen in the ABO blood groups of humans and in:

  1. Self-sterility alleles in some plants
  2. Wheat height
  3. Pea seed colour
  4. Rice grain shape
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Answer: A. Several alleles control self-incompatibility.

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