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Sickle cell anemia is a recessive trait in humans. In a cross between a father who...

  1. Sickle cell anemia is a recessive trait in humans. In a cross between a father who has sickle cell anemia and a mother who is heterozygous for the sickle cell allele, what is the probability that all of their first three children will be unaffected?
    A) 1/4

    B) 1/2 C) none D) 1/8 E) 1/16

  2. In a monohybrid cross AA × aa, what proportion of homozygotes is expected among the F2 offspring? Hint: first cross is parental (P), then comes F1 and then F2.

    A) 1/4
    B) 1/2
    C) 3/4
    D) All are homozygotes. E) None are homozygotes.

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Answer #1

Respected Sir/Ma'am

The answers to your questions are

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Answer to the second question

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Thank you very much in advance :)

Sir/Ma'am along with the answers I provided small explanations if you by any chance require any details consult the explanations!!

Thank you for providing me with the opportunity to help you in your work!!!

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