PSYB32H3 Lecture Notes - Lecture 2: Cellular Differentiation, Handedness, Blastomere
6 Dec 2013
School
Department
Course
Professor
Document Summary
(a) small sample (b) lack of control (a) adopted child & adoptive parents (b) adopted child & biological parents. Ovum + sperm = 23 pairs of chromosomes. Chemical bases adenine, thymine, guanine, & cytosine. Monomorphic vs. polymorphic genes. (a) lack of data availability (b) selective placement (c) homogeneity of adoptive homes. Random mixing & crossing over of genetic information. Each parent passes an allele, which determines offspring characteristic. Emergenic traits will not run in families, but identical twins will share them. Change in one component results in a qualitatively different trait. Attractiveness of one facial feature depends on other features. Phenotypic outcomes: lack of secondary sex characteristics, abnormal internal reproductive system, & permanent sterility. Phenotypic outcomes: decelerated maturation of brain and body features. Living organism made from another have same set of genes. Dolly cloned from frozen mammary cell from an adult sheep. Scnt taking nucleus of a differentiated cell and placing into early embryonic cell without nucleus.
