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How does the number of alleles in a genotype affect skin color in humans?
Option: 1
The number of dominant alleles determines skin color.
Option: 2
The number of recessive alleles determines skin color.
Option: 3
The number of each type of alleles in the genotype determines the darkness or lightness of the skin.
Option: 4
The number of alleles in a genotype has no effect on skin color.
Answers (1)
The text gives an example of how the number of each type of alleles in the genotype determines the darkness or lightness of the skin in humans with the dominant forms A, B and C responsible for dark skin colour and the recessive forms a, b and c for light skin colour.
Option 3 is the correct answer.
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