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What You Need to Know
Monohybrid Crosses
Who was Mendel?
What is “true-breeding?”
Define homozygous and
heterozygous.
What are the P, F1, and
F2 generations?
What is a test cross and
when is it used?
Contrast gene with
allele.
Contrast genotype with
phenotype.
Draw a Punnet square.
Beyond Mendel
Define and give an
example of codominance.
Define and give an
example of incomplete dominance.
Define and give an
example of multiple alleles (blood types).
Define and give an
example of X-linked genes.
Understand the notation
of codominance, incomplete dominance and X-linked
genes (i.e. when are alleles capitalized,
lowercase…)
What are female
“carriers” of X-linked genes?
Pedigrees
Understand the notation
of circles, squares, shaded boxes…
Recognition of
inheritance patterns:
Autosomal dominant
Autosomal recessive
X-linked dominant
X-linked recessive
Dihybrid Crosses
Determine possible
gametes if given parents (i.e. GGHh could produce
gametes GH and Gh)
Set up Punnet squares
for multiple gene crosses
Identify recombinant
offspring in dihybrid crosses.
Know the expected
phenotype ratio for a cross of AaBb with AaBb.
Use the rule of
multiplication to solve problems with three or more
genes (i.e. GGHHJjKk X GGHHJjKk)
Pleiotropy,
Polygenetic Inheritance and Epistasis
Define pleiotropy and
give examples of pleiotropic genes.
How do polygenetic genes
control skin coloration?
Solve problems involving
polygenetic inheritance.
What is epistasis?
Solve problems involving
epistasis.
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