12th Class Fsc Biology Online Preparation for chapter 22 (Variation and Genetics)

Online Short Questions For Chapter 8 "12th Class Biology Chapter 22 Short Questions Preparation "

Try The Short Questions For 12th Class Biology Chapter 22 Short Questions Preparation

  • Total Questions10

  • Available Sets6

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Biology - 12th Class Biology Chapter 22 Short Questions Preparation

Question # 1

Differentiate between tritanopia and deutranopia.

  • Ans 1: Tritanopia: Tritanopia is blue colour blindness.
  • Ans 2: Deuteranopia: Deuteronopia is green blindness.
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Prepare Complete Set Wise Questions For Chapter 8 "12th Class Biology Chapter 22 Short Questions Preparation "

12th Class Biology Chapter 22 Short Questions Preparation - Set 1

Question # 1

Differentiate between tritanopia and deutranopia.

  • Ans 1: Tritanopia: Tritanopia is blue colour blindness.
  • Ans 2: Deuteranopia: Deuteronopia is green blindness.
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12th Class Biology Chapter 22 Short Questions Preparation - Set 2

Question # 1

What is Bombay Phenotype?

  • Ans 1: When in an individuals RBCs lack A and B antigens although the do not contain Ia and Ib genes.They are phenotypically like O blood group but are not genotypically like O.Their phenotype is called Bombay phenotype.
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12th Class Biology Chapter 22 Short Questions Preparation - Set 3

Question # 1

What is Pleiotropy? Give one example.

  • Ans 1: When a single gene affects two or more traits the phenomenon is called pleiotropy. E.g, genes that effect growth rate in human also influence both weight and height.
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12th Class Biology Chapter 22 Short Questions Preparation - Set 4

Question # 1

What is test cross?Who devised it?

  • Ans 1: Mendel devised test cross.
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12th Class Biology Chapter 22 Short Questions Preparation - Set 5

Question # 1

Define recombination frequency.Give an example.

  • Ans 1: It is the proportion of recombinant type between two gene pairs as compared to sum of all combinations.
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12th Class Biology Chapter 22 Short Questions Preparation - Set 6

Question # 1

Define incomplete dominance,Give example

  • Ans 1: When the phenotype of the heterozygote is intermediate between phenotypes of the two homozygotes,it is called incomplete dominance.
    Example: flower colouring in 4'0 clock plant.
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22th Chapter

12th Class Biology Chapter 22 Short Questions

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