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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 firs...
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Contents
Chromosomes, Genes, and Alleles (2:05) -- Mitosis and Meiosis (4:55) -- Meiosis and Chromosomes X and Y (3:46) -- Twins (1:27) -- Genetic Conditions and Patterns of Inheritance (5:17) -- Left-Handedness (1:06) -- Mutations Cause Genetic Conditions...
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