LIFESCI 4 Lecture Notes - Lecture 1: Pea, Gamete, Phenotype
Document Summary
Lecture 1 mendel"s experiments with genetics and gene pair segregation. How is genetic information passed from one generation to the next. He used garden pea plants who"s physical variations were easily observed and could self pollinate. What is the difference between cross and self pollination? pollination from different plants. Both have pollen(male gamete) fertilizing ovule(female gamete) but with cross. From one generation to the next, they have identical phenotypes. P generation true breeding lines w/ diff phenotypes crossed--> creates f1 hybrids. F1 generation self fertilize --> creates f2 with 3:1 phenotype ratio. How are genes different from alleles? alleles are different forms of genes and genes are discrete inheritable factors. Genes come in pairs and halved during ______ __________________. Gene pairs separate equal but their is random feritilization.
