Cold Spring Harbor Laboratory
Some Genes Are Dominant
Dominate a lesson on genetic traits. Young scholars learn about the difference between dominant and recessive traits with an interactive lesson. An animation demonstrates Mendel's work on the inheritance of traits, and interactive...
Cold Spring Harbor Laboratory
Genes Are Real Things
Proving microscopic structures exist is a difficult task. Learn how scientists did just that in the mid-1800s as they set out to identify the cellular structures related to genetics. The online lesson explains the collection of work 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
Sex Cells Have One Set of Chromosomes; Body Cells Have Two
What's the difference between body cells and sex cells? Learners explore the question and the process of meiosis using an interactive lesson. An animation describes the discovery of meiosis and describes its phases for a detailed and...