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Lecture 8

PSYC 2250 Lecture 8: Lecture 8

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PSYC 2250
Steven Hladkyj

o982 A type of cell division that results in four daughter cell each with half the number of chromosomes of the parent cell Autosomes Any chromosome that is not sex chromosome Chromosomes Carrying genetic information in the form of genes DNA Strands of DNA are held together by 4 nucleotide bases o Adeninethymine o Guaninecytosine Mitosis cellular division Genes Segments of DNA Genes occur in the same location for humans Exert influence by sending cytoplasm in the cell body a variety of proteins that then trigger chemical reactions that develop into characteristics 20 million different proteins are formed alleles same gene are chromosome from both parents, found at the same place on a chromosome Homozygous alleles Heterozygous alleles Genotype all genetic makeup Phenotype physically manifested Recessive Genes Dominant Genes Dominance or incomplete dominance both alleles are expressed phenotypically
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