[Free Registration/Login Required] This flipchart show students how to use a Punnett Square to introduce how homozygous and heterozygous genotypes are inherited and how they determine phenotypes.

Historical perspective on Mendel's contribution. Spends a little time setting up what the current beliefs of Mendel's day were and how he changed things with what he did.

How natural selection works at the level of genes, alleles, genotypes, & phenotypes.

Learn how to find allele frequency and how it's different from genotype frequency.

[Free Registration/Login may be required to access all resource tools.] Describes how to use a Punnett square to predict genotypes and phenotypes.

[Free Registration/Login may be required to access all resource tools.] Describes how to use a Punnett square to predict genotypes and phenotypes.

This site from the University of Illinois at Chicago provides an in-depth article on Human Genetics, with a focus on primarily population genetics. The article is factual and informative full of charts, formulas, and extensive text. A...