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MCQs

Total Questions : 60 | Page 1 of 6 pages
Question 1. The Phenomenon of two or more than two genes affecting the expression of each other is called ___________
  1.    Crossing over
  2.    Pairing
  3.    Gene interaction
  4.    Linkage
 Discuss Question
Answer: Option C. -> Gene interaction
Answer: (c).Gene interaction
Question 2. Which of the following ratio shows complementary gene interaction?
  1.    9:7
  2.    15:1
  3.    1:2:1
  4.    9:3:3:1
 Discuss Question
Answer: Option A. -> 9:7
Answer: (a).9:7
Question 3. What is epistasis?
  1.    Type of linkage
  2.    Masking or modifying gene effect
  3.    Upper portion of a chromosome
  4.    Group of genes
 Discuss Question
Answer: Option B. -> Masking or modifying gene effect
Answer: (b).Masking or modifying gene effect
Question 4. Which of the following does not show Mendel’s law of inheritance?
  1.    Masking gene interaction
  2.    Epistasis
  3.    Supplementary gene interaction
  4.    Codominance
 Discuss Question
Answer: Option D. -> Codominance
Answer: (d).Codominance
Question 5. Crossing of two white flowers gives a colored flower, this shows complementary gene interaction.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 6. QTL is the chromosomal site at which a group of genes affecting quantitative traits located.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 7. Which of the following factor does not contribute to quantitative traits?
  1.    Polygenes
  2.    Environmental
  3.    Genetic
  4.    Carbohydrate content
 Discuss Question
Answer: Option D. -> Carbohydrate content
Answer: (d).Carbohydrate content
Question 8. Traits which show continuous variation is referred as ___________
  1.    Genetic disorders
  2.    Phenotypic variation
  3.    Quantitative traits
  4.    Qualitative traits
 Discuss Question
Answer: Option C. -> Quantitative traits
Answer: (c).Quantitative traits
Question 9. Who explained the multifactorial hypothesis?
  1.    Ronald Fisher
  2.    Darwin
  3.    Mendel
  4.    Nilsson-Ehle
 Discuss Question
Answer: Option A. -> Ronald Fisher
Answer: (a).Ronald Fisher
Question 10. Which of the following describes the dissimilarity in the traits due to the variation in genetic factors?
  1.    Polygenic
  2.    Heritability
  3.    Quantitative trait loci
  4.    Maternal effect
 Discuss Question
Answer: Option B. -> Heritability
Answer: (b).Heritability

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