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sashaice [31]
3 years ago
11

Sally's brother is color-blinded. her husband is normal. what is the chance for her son to be color-blinded?

Biology
1 answer:
lozanna [386]3 years ago
5 0

The inheritance of colorblindness gene is X linked. Sally is a female, she'll have two copies of X chromosomes. Since she is not colorblind indicates that she is a carrier of the gene, the presence of at least one functional gene on either of the X chromosome in Sally prevented colorblindness in her. The chances that her husband will have a colorblind child is 25% (1:3) and 50% for the colorblind son (1:1),based on the solved punnett square in the image, where X' denotes the colorblindness gene.

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The given question is incomplete as it lacks the map which is important, however the correct answer is attached:

Answer:

The correct answer is -

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Explanation:

As per the map and the scale presented on the map that indicates the rainfall in inches. The green area indicates that the rain fall in this area is one inch which is moderate as the the sky blue rainfall measurement is .5 inches which is half. However, the red area is the highest rainfall area in comparison to both of these which is about four inches.

On the basis of these it we can label all three boxes as per their rainfall amount that is,

Top box (green area) - moderate rain,

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8 0
3 years ago
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