PSY 2105 Lecture Notes - Lecture 3: Miosis, Cell Nucleus, Egg Cell
17 Feb 2019
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Cell division: each of the almost ten trillion cells in the human body is composed of a nucleus, cytoplasm, and a cell membrane, dna (deoxyribonucleic acid), the core genetic material, is within the nucleus and forms. Crossing over the exchange of genetic material between pairs of chromosomes during meiosis, resulting in four different strands. In 1953, watson and crick reported the discovery of the dna, or deoxyribonucleic acid, structure - specifically that it resembles a spiral staircase or double helix. Structural defects in the chromosome: other structural disorders are associated with unusual arrangements of sex chromosomes. These include: turner"s syndrome, klinefelter"s syndrome, multiple ys syndrome, fragile x syndrome, after down syndrome, fragile x syndrome is the most common cause of mental retardation, particularly in males who inherit the gene. As with other studies, one area of interest was intelligence; in the minnesota study, as in the.
