BIOL 110 Study Guide - Final Guide: Klinefelter Syndrome, Wild Type, Body Plan
25 Nov 2015
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Heterogametic: males with two different sex chromosomes (xy) Homogametic: females with two of the same sex chromosomes (xx) Sexual development: during embryogenesis a male or female outcome is possible, unspecialized gonads and two sets of reproductive ducts exist until week 6, when maleness from the y is expressed. Intersex: a general term applied to non wild type sexuality. Turner syndrome: xo, females affected by the absence of the second sex chromosome. Klinefelter syndrome: xxy, males affected by an extra x chromosome, infertile, enlarged breasts. Hox genes: control the body plan of an embryo, important for making us look like humans with regular skeletal development. Kin selection: strategy that favors the reproductive success of relatives. Sexual antagonism: where one gender has a trait that favors it to the detriment of another trait. X-linked dominant trait: need only one copy to be. X-inactivation: one of the two x chromosomes present in females in inactivated.
