We all know that DNA is the molecule of heredity, but we didn't always know that. It had to be demonstrated empirically. As it happens, some of the first evidence put forth had to do with genes found on the X-chromosome of fruit flies,...

Upon viewing the Traits and Heredity video series, students will be able to do the following: Define traits as the distinguishing characteristics of an organism. Describe heredity as the process of passing on traits from parents to...

Mendel proposed that you inherit a gene either from your mother, or from your father. But not a mixture of both. In this video we are going to look at monohybrid crosses using Punnett squares. A monohybrid cross is the study of the...

This girl has six fingers on her left hand. She has a condition called polydactyly, which causes extra fingers or toes. Her father and grandmother as well as some of her cousins also have the condition. This should give you a clue about...

This video is a lesson on genetics, specifically focusing on the inheritance of traits from parents to offspring. The teacher explains the concept of genetics and introduces Gregor Mendel, the father of genetics. The video also discusses...