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elegans
#6
Dec3-12, 03:30 PM
P: 2
See Morgan's white eyed flies. Every generation of males will have some with white eyes because the mutation is sex linked, in this case it is on the X-chromosome. Flies are a little different than people, because their males are determined by having one X-chromosome, and females have two X-chromosomes, but this demonstrates the chromosomal theory of inheritance. Classic.