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NEETZoologyPrinciples of Inheritance and Variation

Match List-I with List-II regarding symbols used in human pedigree analysis: List-I List-II A. Diamond 1. Affected female B. Solid circle 2. Sex unspecified C. Double horizontal line 3. Five unaffected offspring D. Diamond with number 5 inside 4. Consanguineous mating Choose the correct answer from the options given below:

Options

  1. AA-3, B-1, C-4, D-2
  2. BA-2, B-1, C-4, D-3
  3. CA-2, B-4, C-1, D-3
  4. DA-4, B-1, C-2, D-3

Correct answer

B. A-2, B-1, C-4, D-3

Step-by-step solution

In human pedigree analysis: - A diamond symbol represents sex unspecified. - A solid (filled) circle represents an affected female. - A double horizontal line between a male and female represents consanguineous mating (mating between relatives). - A diamond with a number inside (e.g., 5) represents that number of unaffected offspring. Therefore, the correct match is A-2, B-1, C-4, D-3. Answer: A-2, B-1, C-4, D-3

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