BICD 100 Lecture Notes - Lecture 1: Gamete, Zygosity, Preformationism
9 Jan 2019
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Parental traits are blended and forever changed in their offspring. Each parent contributed some sort of unit of the body. Returned to school at age 29 : university of vienna. Seed shape, seed color, pod shape, pod color, flower color etc. Crossed round and wrinkled: got an f1 generation with round peas. Self-fertilized the f1 plants and got a 3:1 ratio of round:wrinkled. Other traits showed the same pattern of inheritance. Each parent must has 2 copies of a "unit factor" (gene). Genes can have different versions: d or d. One version (allele) from each parent is passed to f1. Random segregation (d or d has equal chance) During the formation of gametes (egg or pollen), the paired factors separate or segregate randomly so that each gamete receives one or the other with equal likelihood. Allele: alternative verions of a gene, in diploids, there are two alleles of every gene (d or d)
