AP BIOLOGY CHAPTER GUIDECh. 11 - Mendelian Patterns of Inheritance
1. What was the fundamental problem with the blending concept of inheritance? (p. 193)
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2. What are the tenets of the law of segregation? (p. 196)
a. __________________________________________________________________________
b. __________________________________________________________________________
c. __________________________________________________________________________
d. __________________________________________________________________________
3. Define these terms associated with classical genetics. (p. 196-197)
a. locus - ____________________________________________________________________
b. allele - ____________________________________________________________________
c. dominante allele - ___________________________________________________________
d. recessive allele - ____________________________________________________________
e. homozygous - ______________________________________________________________
f. heterozygous - _____________________________________________________________
g. genotype - ________________________________________________________________
h. phenotype - ________________________________________________________________
4. What are the tenets of the law of independent assortment? (p. 198)
a. __________________________________________________________________________
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b. __________________________________________________________________________
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5. It is important to note that the law of independent assortment applies only to alleles on
_______________________________ . (p. 198)
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6. Take a look at figure 11.7. Mendel’s laws hold up during meiosis because the homologous
chromosomes line up ____________
during metaphase I. Notice how during
metaphase II, each daughter cell has
only _______ member of each
homologous pair in keeping with the
law of segregation. Can gametes be
formed that contain ONLY the maternal
or paternal chromosomes? Explain
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7. We all know how to do punnet squares, but explain the idea of the product rule in relation to
probability of expected outcomes (p. 200)
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8. Define a testcross. What important conclusions can be drawn from the outcome? (p. 200)
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9. From what 4 gamete combinations did these fruit flies arise from? (p. 201)
1. __________ 2. __________ 3. __________ 4. __________
10. Create a simple autosomal recessive pedigree with a mom, dad, and daughter. The daughter is
affected with cystic fibrosis and the parents are carriers. Provide the family’s genotypes using “F” for
the dominant allele and “f” for the recessive allele. (p. 201-202)
11. Create a simple autosomal dominant pedigree with a mom, dad, and son. The son is
not affected with osteogenesis Imperfecta, but the parents are. Provide the family’s
genotypes using “E” for the dominant allele and “e” for the recessive allele. (p. 201-202)
12. What is one key difference between the offspring of affected parents with an autosomal recessive
disease and the offspring of affected parents with an autosomal dominant disease?
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Cystic fibrosis (autosomal recessive) Osteogenesis Imperfecta (autosomal dominant)
AP BIOLOGY CHAPTER GUIDE
Description Example Punnett square / diagram
Multiple allelic traits
Incomplete dominance
Pleiotropy
Polygenic inheritance
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AP BIOLOGY CHAPTER GUIDE
Black bear + polar bear = panda bear?
X-linked inheritance
Description Example Punnett square / diagram
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