PSYB64H3 Chapter Notes - Chapter 10: Male Reproductive System, Orgasm, Progestin
3 Mar 2018
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The term sex is used to refer to biological sex. Gender is used for social, learned and personal aspects. An individual"s sex begins with sex chromosomes inherited from 2 parents. Mothers provide x chromosomes (individual with x chromo. The sex chromo. (23rd pair)comes along with 22 other pairs of chromo. Karyotype is a profile of chromosome number and appearance in the nucleus of the cell as seen under a microscope. Are found in the nuclei of body cells in humans except the rbc (they have no dna), sperm cells and eggs cells (they only contain one copy from each pair of chromo. ) Mosaic karyotype means that a single individual has cells with differing complements of chromo. Down syndrome occurs when an individual has 3 copies of the 21st chromo. Having a third copy of the sex chromo. Has mild effects, people with this do not usually get diagnosed.
