A 2-year-old boy is recently diagnosed with red-green color blindness which is an X-linked recessive disorder....
A 2-year-old boy is recently diagnosed with red-green color blindness which is an X-linked recessive disorder. Which of the following represents correct genotypes of this individual’s parents with respect to red-green color blindness? (X - wild type; X allele; R wild type autosomal allele; r recessive autosomal allele and Y chromosome)
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Mom Rr and Dad rr |
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Mom rr and Dad RR |
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Mom XX and Dad X'Y |
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Mom X'X and Dad XY |
Homework Answers
Answer:
d). Mom X'X and Dad XY
The colour blindness is an X-linked recessive disease. Males receive their X-chromosome only from the mother, so the carrier mothers can have affected sons.
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A 2-year-old boy is recently diagnosed with red-green color
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