Psychology 1000 Lecture Notes - Lecture 4: David Buss, Polygynandry, Neutral Theory Of Molecular Evolution

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Terry Biggs

Document Summary

Hippocrates suggested that semen contains not body parts, but rather some sort of design for the formation of the offspring. Genotype are present from conception and never change. Phenotype can be affected by other genes and by the environment. The egg & sperm carry within them the material of heredity in the form of rodlike units called chromosomes: chromosomes: a tightly coiled molecule of dna that is partly covered by protein. The dna portion of the chromosome carries the hereditary blue prints in units called genes. Every cell in the body has 46 chromosomes except for sperm/egg cell, which has only 23 chromosomes: at conception 23 + 23 form a new cell call the zygote. Alleles: alternative forms of a gene that produces different characteristic are called. The estimated 70,000 proteins found in a human control the structure of individual cell and all the chemical reactions that go on within those cells.