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Color-blindness results from both the expression of a single recessive sex-linked allele (b.) Which of the following is a genotype of a colorblind male? XbY XBXB XBY XbXb
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Color-blindness results from both the expression of a single recessive sex-linked allele (b.)

Which of the following is a genotype of a colorblind male?



XbY

XBXB

XBY

XbXb

User Aleksey Shevchenko
by
4.3k points

1 Answer

2 votes

Answer:

XbY

Step-by-step explanation:

because the question asks genotype of a male, the chromosomes would be XY, so XBX and XbXb can be eliminated leaving only XBY and XbY. XBY is incorrect because the question states that colorblindness is represented by lowercase b, so the correct answer is XbY.

User Kashiraja
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5.1k points
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