3100:211 Lecture Notes - Lecture 1: Inbreeding, Product Rule, Xx Male Syndrome
Document Summary
Biggest problem-missing the mechanism of inheritance in the origin of species. (didn"t have one) 1860"s-gregor mendel-monk that looked to explain a mechanism of inheritance. Early 1900"s-solved to some extent the mechanism of inheritance (rediscovery of mendel"s work. Could be inbred (one plant be both male/female) or outbred (one plant male, one plant female) F_2 crossed 2nd gen, found some purple (3/4) and some white (1/4) Particles-either purple or white, the colors don"t mix together. One is dominant while the other is recessive. Genotype-what the genes are that create these characteristics. Homozygous-have 2 genotypes, but they are both the same. Locus-place on the chromosome that determines the genotype. Allele-form that is present on the chromosome that determines genotype. Gametes are formed at random, and they are also combined at random. Bill and mary have a child with pku. What is the chance their next child has pku. With two loci, there are 81 different types of genotypes (aabbxaabb)
