Download Genetics in focus 2

Name _________________________ Date ___________ Per. _______
Observe the following punnett square for
hemophilia and answer the following
questions.
Xh
Y
h
h h
X
XX
XhY
Xh
XhXh
XhY
1. Hemophilia is dominant or recessive?
________________________________
2. Does the father have hemophilia?
________________________________
3. Does the mother have hemophilia?
________________________________
4. Are the children carriers of
hemophilia? ______________________
5. How many of the children have
hemophila? ______________________
6. The genotype for a male carrier would
be? _____________________________
7. The genotype for a female carrier
would be? _______________________
8. What percent of the offspring have
hemophilia? _____________________
9. Is hemophilia sex linked? _________
Observe the following information and
answer the questions.
Jox are affected by a recessive sex linked
condition called sproits. In the punnett
square below cross a normal male with a
sproits carrying female.
©Garber2010(747138048)6/17/2017 4:07:48 PM original in 1995
10. Does the father have sproits?
_______________________________
11. Does the mother have sproits?
_______________________________
12. How many of the children are
female? ________________________
13. How many of the female children
have sproits? ____________________
14. How many of the male children have
sproits? _________________________
15. What percent of the male children
have sproits? ____________________
16. What is the genotype of a male child
with sproits? _____________________
17. What is the genotype of a female
child with sproits? ________________
18. What is the genotype of a female
sproits carrier? ___________________
19. If all of the female jox are sproits
carriers, what percent of the male
population would have sproits?
________________________________
20. If there were no female carriers of
sproits, the sproits gene would have to be
on which chromosome? ____________
21. If males had 2 "Y" chromosomes
could they inherit sproits? ___________
22. Can a sproits affected female ever
have a normal child? _______________
23. Can a sproits affected male ever have
normal female children? ____________
24. Can a female carrier of sproits and an
affected male ever have normal male
children? _________________________