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Name: ________________________________________ Period: _______ Date: _________________
Review Sheet for Human Inheritance and Human Genetic Disorders (pages 110-121)
Section 1- Human Inheritance
1. How many pairs of chromosomes do humans have? ______________
2. Which pair of chromosomes determines if a human is male or female? _______________________
3. What two sex chromosomes determine if a human is female? ______________________________
4. What two sex chromosomes determine if a human is male? ________________________________
5. What is a sex-linked gene? _________________________________________________________
__________________________________________________________________________________
6. What are examples of traits that are controlled by sex-linked genes? _________________________
__________________________________________________________________________________
7. What is a carrier? _________________________________________________________________
__________________________________________________________________________________
8. If a father is not colorblind and the mother is a carrier for the allele, what is the probability that they
will have a daughter that is colorblind? __________________________________________________
What is the probability that they will have a son that is colorblind? _____________________________
XC= not colorblind
Xc= colorblind
Genotypes:
9. A father has hemophilia and a mother does not have hemophilia and is not a carrier. What
is the probability that they will have a daughter with hemophilia? ______________________________
What is the probability that they will have a son with hemophilia? ______________________________
XH= no hemophilia
Xh= hemophilia
Genotypes:
10. If a father has muscular dystrophy and a mother is a carrier for the trait, what is the probability that
they have a daughter with hemophilia? __________________________________________________
What is the probability that they will have a son with muscular dystrophy? _______________________
XM= no muscular dystrophy
Xm= muscular dystrophy
Genotypes:
Section 2- Human Genetic Disorders
11. What is a genetic disorder? ________________________________________________________
__________________________________________________________________________________
12. What is the importance of a pedigree chart? ___________________________________________
__________________________________________________________________________________
13. a) What do the circles in the pedigree chart represent? __________________________________
b) What do the squares in the pedigree chart represent? ____________________________________
c) Which individuals have the trait that is traced by the pedigree? ______________________________
d) Which individuals are carriers of the trait that is traced by the pedigree? ______________________
e) Which individuals neither have the trait nor are carriers? ___________________________________
f) Which pairs of individuals in the pedigree have children? ___________________________________
14. What is a karyotype? _____________________________________________________________
15. Based on the bacteria and antibiotics lab, use ALL of the following terms to draw the results on the
Petri plates below. You may use a term more than once if needed.
 mm294 E. coli
 mm294 amp resistant E. coli
 ring of death (also known as zone of restriction or halo)
 lawn of bacterial growth
 ampicillin
 kanamycin