Mendelism (Monohybrid and Dihybrid Crosses)

Reading:

Chapter 13 (pp. 230-239)

Terms:

Mendelism
heredity
true-breeding ( pure-breeding)
P generation
self-fertilization
cross-fertilization
F1 generation
F2 generation
homozygous
heterozygous
trait
genotype
phenotype
dominant
recessive
First Law: Segregation
Second Law: Independent assortment
allele
gene
Punnett square
testcross
monohybrid
dihybrid
trihybrid
probability
independent trial
sum rule
product rule

Be familiar with Mendel's experimental design.

What is the difference between a "gene" and an "allele?"

Distinguish between the terms: homozygous and heterozygous, genotype and phenotype, dominant and recessive.

Be able to predict both genotypic and phenotypic ratios from a genetic cross.

Predict gamete genotypes from an individual of a given genotype (both monohybrids and dihybrids).

Use a Punnett square to answer questions involving genetic crosses.

For problems larger than a monohybrid cross (dihybrid or trihybrid cross), use a branch diagram (or the product rule) to predict offspring genotypic and phenotypic ratios.

What types of probability questions can be answered using the sum rule?

What types of probability questions can be answered using the product rule?

Describe both the First Law: Segregation and the Second Law: Independent Assortment.