5. Cross a female who is colorblind with a man who has normal color vision. Tell the expected phenotypic ratio of their offspring.

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5. Cross a female who is colorblind with a man who has normal
color vision. Tell the expected phenotypic ratio of their
offspring.
6. Cross a female who is heterozygous for blood clotting factors
with a man who has hemophilia. Tell the expected phenotypic
ratio of the offspring.
7. Hairy ears are caused by a gene on the Y chromosome. If a male
with hairy ears had children, what would be the expected
phenotypes of his sons? His daughters?
8. What is a sex-linked trait?
9. Why must males inherit colorblindness or hemophilia from their
mothers?
10. Why is colorblindness or hemophilia more common in males
than in females?
Transcribed Image Text:5. Cross a female who is colorblind with a man who has normal color vision. Tell the expected phenotypic ratio of their offspring. 6. Cross a female who is heterozygous for blood clotting factors with a man who has hemophilia. Tell the expected phenotypic ratio of the offspring. 7. Hairy ears are caused by a gene on the Y chromosome. If a male with hairy ears had children, what would be the expected phenotypes of his sons? His daughters? 8. What is a sex-linked trait? 9. Why must males inherit colorblindness or hemophilia from their mothers? 10. Why is colorblindness or hemophilia more common in males than in females?
Directions: Use the following information to answer the
questions below: all are sex-linked recessive
disorders.
H= normal blood clotting
C=Normal Vision h-hemophilia
muscular dystrophy
M= Normal
c= colorblind
1. Write the genotypes for the following individuals:
a. female with no family history of hemophilia
b. male with hemophilia
c. male with muscular dystrophy
d. male with normal color vision
e. normal color vision female with colorblind father
f. male with normal blood clotting
g. colorblind male
m=
2. Cross a female who is a carrier of the gene for hemophilia with a
man who has normal blood clotting. Tell the expected
phenotypic ratio of the offspring.
3. Cross a female with normal color vision, but whose father was
colorblind, with a man who has colorblindness. Tell the
expected phenotypic ratio of the offspring.
4. Cross a woman who does not suffer from muscular dystrophy
and has no family history of muscular dystrophy with a man
who has the disorder. Tell the expected phenotypic ratio of the
offspring.
Transcribed Image Text:Directions: Use the following information to answer the questions below: all are sex-linked recessive disorders. H= normal blood clotting C=Normal Vision h-hemophilia muscular dystrophy M= Normal c= colorblind 1. Write the genotypes for the following individuals: a. female with no family history of hemophilia b. male with hemophilia c. male with muscular dystrophy d. male with normal color vision e. normal color vision female with colorblind father f. male with normal blood clotting g. colorblind male m= 2. Cross a female who is a carrier of the gene for hemophilia with a man who has normal blood clotting. Tell the expected phenotypic ratio of the offspring. 3. Cross a female with normal color vision, but whose father was colorblind, with a man who has colorblindness. Tell the expected phenotypic ratio of the offspring. 4. Cross a woman who does not suffer from muscular dystrophy and has no family history of muscular dystrophy with a man who has the disorder. Tell the expected phenotypic ratio of the offspring.
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