08 Notes - Genomic Imprinting Can see well on chromosome 15...

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Genomic Imprinting Can see well on chromosome 15 Prader-Willi Syndrome- Occurs when the gene that should be functioning in chromosome 15 of the sperm fails—in other words, the male active region of chromosome 15 doesn’t work, and the female region is already shut off. Children untreated with this are incredibly obese. They have insatiable hunger. The kids will eat anything they can. Some mental retardation is present. Difficult to treat—you keep food locked up. Occurs during gameto-genesis. Angelman Syndrome- “Happy puppet syndrome”—Female version. These kids are very happy, very skinny… Their arms look like those of a puppet. Generally when this happens, there has been a deletion. Individual may have 2 copies of the chromosome 15 from the same parent, both of which are shut off. Sex-limited Traits Lactation- Females can produce milk; males cannot. Male can contribute genes for lactation. When dairy farmers want to produce more milk, they choose a male whose daughters produce lots of milk to breed with the female. Sex-influenced Traits
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This note was uploaded on 04/29/2008 for the course SOCI 205 taught by Professor Evans during the Spring '08 term at Texas A&M.

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08 Notes - Genomic Imprinting Can see well on chromosome 15...

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