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When you look at a family photo, the resemblances, even across several generations, can be striking. What role do genes play, and why aren't siblings identical (and why are some)? This program explains how the formation of sex cells, from the first gamete to chromosome pairs, determines our genetic makeup. Deviations such as cystic fibrosis, Huntington's disease, achondroplasia, Klinefelter syndrome, and Turner syndrome are also discussed. (28 minutes, color)
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Related products: Part One-Cells: An Introduction, Part Two-Cell Functions: A Closer Look, Genetic Discoveries, Disorders, and Mutations, Understanding the Basic Concepts of Genetics, Hand-Me-Down Genes: How Genes Work |
