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In: Biology

Sex-linked Punnett Squares (hint: 1-5 comes directly from your lecture) 1) What would be the genotype...

Sex-linked Punnett Squares (hint: 1-5 comes directly from your lecture)

1) What would be the genotype of a man with hemophelia? ____________

2) What would be the genotype of a woman who is a carrier for hemophelia? ___________

3) What would be the genotype of a man without hemophelia? ____________

4) What would be the genotype of a woman who has hemophelia? ____________

5) What would be the genotype of a woman who has no trace of hemophelia? _________

6) A woman with hemophelia mates with a man without hemophelia. Set up the punnett square.

a. What percentage of the children will have hemophelia? _________

b. What percentage of the children are women who are carriers? _________

7) A man with hemophelia mates with a woman without hemophelia and isn’t a carrier. Complete a punnett square for this example.

a. What percentage of their offspring will be a carrier for hemophelia? ________

b. If they have any male children will they have hemophelia? ________

Solutions

Expert Solution

  • Sex-linked Punnett Squares-

1) What would be the genotype of a man with hemophelia? _XhY___________

2) What would be the genotype of a woman who is a carrier for hemophelia? ______XhXH_____

3) What would be the genotype of a man without hemophelia? _____XHY_______

4) What would be the genotype of a woman who has hemophelia? ______XhXh______

5) What would be the genotype of a woman who has no trace of hemophelia? __XHXH_______

6) A woman with hemophelia mates with a man without hemophelia. Set up the punnett square.

XhXh   X XHY

Xh Xh
XH Xh XH Xh  XH
Y XhY XhY

a. What percentage of the children will have hemophelia? ___50%______

b. What percentage of children are women who are carriers? _100%________

7) A man with hemophilia mates with a woman without hemophilia and isn’t a carrier. Complete a punnett square for this example.

XhY X XHXH

Xh Y
XH XhXH XHY
XH XhXH XHY

a. What percentage of their offspring will be a carrier for hemophilia? ____50%___

b. If they have any male children will they have hemophilia? ____No____

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