Oklahoma State University
Hairy Heredity
Young scholars learn that heredity comes down to the flip of a coin with this cross-curricular math and science lesson. Using smiley faces as a model, students toss coins to determine which dominant or recessive traits will be passed on...
Cold Spring Harbor Laboratory
Chromosomes Carry Genes
Some traits only exist in males and some only in females. Pupils learn how the location of genes on sex chromosomes determines them using an interactive lesson. An animation illustrates how scientists know this to be true and shows how...