6th grade science

posted by .

A couple has just learned that their daughter has hemophilia. They already have a son who does not have the disease. What are the genotypes of the couple?

I don't know how to do this please help!

  • 6th grade science -

    The gene for hemophilia is sex-linked, a recessive on the X-chromosome. The daughter must have both Xs with the gene, while the son does not have the gene on his X chromosome.

    With that information, you should be able to get the parental genotypes.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. biology

    hemophilia is a sex linked recessive disorder. A man who has a hemophilia has a daughter who has a normal phenotype. She marries a man who also does not have hemophilia. what is the chance that they will have a daughter who has hemophilia?
  2. science help plzzz

    Multiple Choice 1. At the chromosomal level, what is the difference between human males and human females?
  3. science

    a couple has just learned that their daughter has hemophilia. they alredy have a son who does not have the disease.what are the genotypes of the couple
  4. Science

    I don't understand these problems can you help me. Multiple Choice 1. At the chromosomal level, what is the difference between human males and human females?
  5. science HELP ASAP!!!!!!!

    12. How do the cherries on a cherry tree help the plant reproduce?
  6. science!!

    A couple has just learned that their daughter has hemophilia. They already have a son who does not have the disease. What are the genotypes of the couple?
  7. science

    A couple has just learned that their daughter has hemophilia. They already have a son who does not have the disease. What are the genotypes of the couple?
  8. science

    Fill in the blank with the word or phrase that best completes the statement or answers the question. 14. The scientific name for a plant that reproduces with flowers is a(n) (1 point) 15. At certain times of the year, the male sage …
  9. History Part2

    Fill in the blank with the word or phrase that best completes the statement or answers the question. 14. The scientific name for a plant that reproduces with flowers is a(n) (1 point) 15. At certain times of the year, the male sage …
  10. Science

    1.)A couple has just learned that their daughter has hemophilia. They already have a son who does not have the disease. What are the genotypes of the couple?

More Similar Questions