Question:
Match the correct numbers regarding the inheritance of human skin colour.
Number of different types of gametes produced by multialleles
Total number of different combinations in F$_2$ generation
Number of different phenotypes in F$_2$ generation
Match the correct numbers regarding the inheritance of human skin colour.
Number of different types of gametes produced by multialleles Total number of different combinations in F$_2$ generation Number of different phenotypes in F$_2$ generation
Number of different types of gametes produced by multialleles Total number of different combinations in F$_2$ generation Number of different phenotypes in F$_2$ generation
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Polygenic traits show continuous variation.
Updated On: Feb 4, 2026
- 64 8 7
- 7 8 64
- 8 64 7
- 7 64 8
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The Correct Option is C
Solution and Explanation
Step 1: Understanding polygenic inheritance.
Human skin colour is controlled by three pairs of polygenes showing additive effect.
Step 2: Calculations.
Number of gametes = $2^3 = 8$
Total combinations in F$_2$ = $8 \times 8 = 64$
Number of phenotypes = $2n + 1 = 7$
Step 3: Conclusion.
Thus, the correct matching is 8, 64, 7.
Human skin colour is controlled by three pairs of polygenes showing additive effect.
Step 2: Calculations.
Number of gametes = $2^3 = 8$
Total combinations in F$_2$ = $8 \times 8 = 64$
Number of phenotypes = $2n + 1 = 7$
Step 3: Conclusion.
Thus, the correct matching is 8, 64, 7.
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