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Diana97

  • 2 years ago

A man and woman have a son who is color blind, a recessive sex-linked trait carried on the X-chromosome, but neither parent is color blind. The woman is now pregnant with their second child. Which of the following statements is true about the second child?

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  1. Diana97
    • 2 years ago
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    A daughter will be color blind because the father is a carrier of the recessive allele. A son will be color blind because the mother is a carrier of the recessive allele. A daughter will not be color blind because the father is not a carrier of the recessive allele. A son will be color blind because the father’s mother must have been a carrier for recessive allele.

  2. yummydum
    • 2 years ago
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    B :)

  3. yummydum
    • 2 years ago
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    fathers are not carriers and i think it is more common in sons than daughters :)

  4. mathslover
    • 2 years ago
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    C. A daughter will not be color blind because the father is not a carrier of the recessive allele.

  5. mathslover
    • 2 years ago
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    source: http://answers.yahoo.com/question/index?qid=20111202114240AApFdq8

  6. yummydum
    • 2 years ago
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    or that....

  7. Diana97
    • 2 years ago
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    @yummydum or wat

  8. yummydum
    • 2 years ago
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    or what mathslover said :) ...since he has a source (not the best but still) ...altough what i told you is what i learned :)

  9. Diana97
    • 2 years ago
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    so is A

  10. yummydum
    • 2 years ago
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    umm....lemme look it up again :)

  11. yummydum
    • 2 years ago
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    A and C are both true....you just have to choose the better answer...Bio tests are always like this

  12. yummydum
    • 2 years ago
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    I would go with A :)

  13. yummydum
    • 2 years ago
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    yup...A :)

  14. Diana97
    • 2 years ago
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    hhhhhhhmmm ok

  15. mathslover
    • 2 years ago
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    GO for what you studied at present that source is not more reliable .. best of luck good job @yummydum

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