BIOSC-101 Lecture Notes - Lecture 13: Mendelian Inheritance, Zygosity, Meiosis
20 Jun 2020
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What is the genotype of a plant with the dominant phenotype? (aka what a testcross shows) Each gamete contains one allele of each gene. During gamete formation, the alleles of genes on different chromosomes assort independently of each other. Boveri and sutton independently observed chromosomes during meiosis, and noticed they behaved like mendel"s. They proposed the chromosome theory of inheritance. Through his experiments in fruit flies, he was the first person to definitively link the inheritance of a specific trait (white eyes) with a particular chromosome (the x chromosome) Heterozygotes fully display the phenotype of the dominant allele. Heterozygotes have an intermediate phenotype between those of the two homozygote parents, on some quantitative scale (color, size ) The phenotype of both alleles is fully expressed in the. When incomplete dominance occurs, offspring have an intermediate heterozygote phenotype between the two parents.
