BIOA01H3 Lecture Notes - Lecture 31: Gamete, Zygote, Epistasis

• School: UTSC
• Department: Biological Sciences
• Course: BIOA01H3
• Professor: Mark Fitzpatrick

Document Summary

Differs from all that have existed before and from all that will come after. Transmission genetics = manner in which genetic differences among individuals are passed from generation to generation. Pea plant crossing: anthers are removed to prevent self-fertilization, mature pollen is collected and deposited on stigma of female parent, after fertilization, a small bag is tied around it to prevent stray pollen from entering. True breeding yellow and green seeds breed to produce f 1. Trait that appears in the f 1 generation is dominant and other trait is recessive. Cross of heterozygotes parents result in a dominant: recessive of 3:1. Each gamete contains one allele of each gene. Fertilized egg cell is called the zygote. Equal separation of alleles of a gene into different gametes; half get one allele, the other. Formed from the random union of two gametes, one from each parent half get the other allele.