A brief animation introduces heredity to your beginning biologists. They will meet Gregor Mendel's green and yellow peas, dominant and recessive traits, homozygous and heterozygous alleles, and Punnett squares. In this cartoon animation,...

Ear wax, either wet or dry, is inherited on chromosome 16. The narrator of a video about heredity uses ear wax to introduce the concepts of alleles, dominant and recessive traits, and heterozygous and homozygous genotypes. 

Young scientists generally love to learn how certain traits can be explained by a direct combination of alleles from their parents. Here, they can examine how a phenotype is often expressed when one allele is recessive and the other is...

Are your biologists ready for advanced genetics? Briefly learn about Gregor Mendel, and dive into the phylogenetic tree, linked genes, multiple genes and nonnuclear inheritance! Mr. Anderson continues his clear instruction and use of...

How do organisms end up with such a wide variety of traits? It's in their genes! Kick off your inherited traits lesson using a brief video that covers alleles and genes. The narrator describes heterozygous and homozygous genotypes, how...

[Free Registration/Login may be required to access all resource tools.] In this Kahn Academy video, learn about Punnettt squares, with specific information on dihybrid crosses, independent assortment, incomplete dominance, codominance,...

Learn how to use Punnett squares to calculate probabilities of different phenotypes. Includes worked examples of dihybrid crosses. independent assortment, incomplete dominance, codominance, and multiple alleles. [25:17]