Cold Spring Harbor Laboratory
Children Resemble Their Parents
Gregor Mendel's work revolutionized agriculture from an art to a science. Explore Mendel's work with an interactive lesson that includes animations, video, and practice problems. The instruction describes the early discoveries that...
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...
Cold Spring Harbor Laboratory
Dolan Dna Learning Center: Inheritance Calculator: Genetic Traits
An interactive Punnett Square inheritance calculator helps students work out patterns of recessive inheritance for a trait, such as straight or peaked hairline.
Cold Spring Harbor Laboratory
Dolan Dna Learning Center: Inheritance Calculator: Blank Make Your Own
An interactive Punnett Square calculator which allows students to work out patterns of inheritance for any autosomal recessive genetic trait or disease.