AP Biology · Unit 5
Heredity
Model chromosome behavior in meiosis, connect it to genetic variation, and use probability and data to evaluate inheritance patterns.
Learning sequence
Choose a lesson
Topic 5.1
Meiosis and Chromosome Behavior
Track homologs, sister chromatids, ploidy, DNA content, and chromosome-separation errors.
Topic 5.2
How Meiosis Generates Genetic Diversity
Connect crossing over, independent assortment, fertilization, and recombination evidence.
Topic 5.3
Mendelian Crosses and Probability
Apply segregation, probability rules, Punnett models, and testcrosses.
Topics 5.3–5.4
Pedigrees and Inheritance Patterns
Use family evidence, linkage, heterozygote phenotypes, chromosome location, and parent of origin.
Topics 5.3–5.5
Chi-Square and Complex Inheritance
Use chi-square and controlled-environment evidence to evaluate phenotype explanations.
Topics 5.1–5.5
Unit 5 Assessment
Apply chromosome models, probability, pedigrees, chi-square, gene mapping, and environmental evidence.