PSY BEH 101D Chapter Notes - Chapter 2: Turner Syndrome, Prenatal Development, Intellectual Disability
5 Apr 2018
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Document Summary
Evolutionary psychology: a branch of psychology that emphasizes the importance of adaptation, reproduction, and survival of the fittest in shaping behavior. Mitosis: cellular reproduction in which the cell"s nucleus duplicates itself; two new cells are formed, each containing the same dna as the original cell, arranged in the same 23 pairs of chromosomes. Meiosis: a specialized form of cell division that occurs to form eggs and sperm (or gametes). Down syndrome: a chromosomally transmitted form of intellectual disability caused by the presence of an extra copy of chromosome 21. Klinefelter syndrome: a chromosomal disorder in which males have an extra x chromosome, making them xxy instead of xy. Fragile x syndrome: a chromosomal disorder involving an abnormality in the x chromosome, which becomes constricted and often breaks. Turner syndrome: a chromosomal disorder in females in which either an x chromosome is missing, making the person is xo or part of one x chromosome is deleted.
