PSYCH 1X03 Lecture Notes - Lecture 1: Random Assignment, Heredity, Digestive Enzyme
21 Jan 2017
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Document Summary
Difference between age groups may be due to generational differences and not reflect actual differences in development. When a few get near the egg, they. Conception release a digestive enzyme that eats away at the egg"s protective coating allowing the sperm to penetrate. As soon as one sperm begins to penetrate, the egg"s surface blocks out all others from entering an sends out projections to pull the sperm in. After 12 hours or so, the egg"s nucleus and sperm"s nucleus fuse - creating a unique genetic blueprint. Genetic transmission: genetic blueprint is made up of 23 pairs of chromosomes; 23 from the mother, 23 from the father, chromosomes: a structure composed of acids and protein found in the nucleus of most living cells. It contains genetic information: made up of a long coil of dna which contains the biochemical units of heredity, which are genes, deoxyribonucleic acid (dna): the building blocks of chromosomes.
