PSYC 2410 Chapter Notes - Chapter 4: Reciprocal Altruism, Incus, Binocular Disparity
10 Dec 2012
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Document Summary
Genotype: genetic makeup of an individual. (never changes) Phenotype: observable characteristics produced by that genetic endowment. (can be affected by other genes) Chromosome: a tightly coiled molecule of dna that is partly covered by protein. Genes code for the production of proteins. Alleles: alternative forms of a gene, which produces different characteristics. Dominant gene: the particular characteristics that it controls will be displayed. Recessive gene: the characteristic will not show up unless the other partner"s gene is also recessive. (dark hair, brown eyes are dominant over blue eyes and light hair) Polygenic transmission: number of gene pairs combines their influences to create a single phenotypic trait. Recombinant dna procedures, researchers use certain enzymes to cut the long threadlike molecules of genetic dna into pieces, combine them with dna from another organism, and insert them into a host organism. (used for human growth hormone)
