L33 Psych 321 Lecture Notes - Lecture 3: Zygosity, Genetic Testing, Heredity
5 Mar 2019
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Epigenesis: continuous interplay between genes and multiple levels of the environment (from cells to culture) that drives development. Niche-picking: deliberately seeking environments that fit ones heredity. Cell division: post-mitotic cells: includes miscles, neurons, mitosis (somatic cells are produced) Meiosis (germ(sex) cells are produced: spermatogenesis and oogenesis. Spermatogenesis: spermatogonium primary spermatocyte two secondary spermatocytes four sperm. Oogenesis: oogonium primary oocyte>secondary oocyte ovum. > first polar body second polar body genes- pairs: each group of nucleotide bases that provides a specific set of biochemical instructions is a gene. Genotype versus phenotype: genotype: refers to a persons hereditary makeup, phenotype: refers to the physical, behavioral, and psychological characteristics that result when a genotype is exposed to a specific environment. Single gene inheritance: alleles, homozygous vs heterozygous. Aa aa bb bb aa bb aa bb: mendelian laws of genetics. A o: ao oo a dominates o, ao- type a oo-type o, ao oo.
