PSYB20H3 Lecture Notes - Lecture 2: Sickle-Cell Disease, Twin Study, Fetus
28 Sep 2016
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*summarize how conception occurs and describe alternative paths to parenthood. *explain how traits are passed down across generations. *describe how abnormalities are transmitted in the genes and the options prospective parents have for testing them. *describe how researchers determine the relative influence of genes and environments, and how these variables interact with each other. *summarize how genes affect physical, intellectual, and personality development, s well as psychopathologies. Ovulation the primer to conception needs to occur for natural birth to occur follicular phase- ovarian follicles mature occurs before ovulation in menstration. Estrogen levels peak towards the end --> causes hormones; Controlled by the hypothalamus luteinizing hormone secreted (lh) follicle-stimulating hormone secreted (fsh) explodes and that"s when the egg comes from. Men several hundred million sperm are produced in the testicle each day. Inability to conceive after 12 months of trying. Low sperm count less than 60 million sperm = unlikely to get to egg.
