Ch. 13 - Mendelian GeneticsWorksheetSee all chapters

# Punnett Square Probability

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Sections
Introduction to Mendel's Experiments
Genotype vs. Phenotype
Punnett Squares
Mendel's Experiments
Mendel's Laws
Monohybrid Crosses
Test Crosses
Dihybrid Crosses
Punnett Square Probability
Incomplete Dominance vs. Codominance
Epistasis
Non-Mendelian Genetics
Pedigrees
Autosomal Inheritance
X-Inactivation

Concept #1: Punnett Square Probability

Concept #2: Rule of Multiplication (the AND Rule)

Practice: Calculate the probability of 2 heterozygous (Rr) parents having 3 homozygous recessive (rr) offspring.

Concept #3: Rule of Addition (the OR Rule)

Practice: What is the probability that a plant from a monohybrid cross of heterozygous parents, is homozygous dominant OR homozygous recessive?

Practice: A blue-eyed female that is homozygous recessive and a brown-eyed male that is heterozygous mate, producing two offspring. What is the probability that one child will have blue eyes AND one will have brown eyes? (Eye color is controlled by a single gene).

Practice: A homozygous dominant male has a child with a heterozygous female. What is the probability that the child will have the same genotype as its father OR its mother?