CAS BI 206 Lecture Notes - Lecture 3: Epistasis, Mendelian Inheritance, Zygosity
7 Feb 2020
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I mendel"s law of segregation the two alleles for each characteristic separate segregate during gamete formation and then unite at random one from each parent at fertilization. Ii mendel"s law of pairs of alleles segregate independently of each other traits mask recessive traits. A mendel"s dihybrid crosses yellowigreen us round wrinkled dominant of one gene i simplified human example h is hair b is color. B whathappens when 2 genes affect same characteristic phenotype emergence of green aabb due to genesinteracting additively. Bbhh or bbhh brown hair blonde hair hh hairless alopecia i new phenotypes may occur a ex lentil seed color. Enaifniontoanneotan en me bb tan dark aa enxzyme grey. O enzyme bb c epistasis allele at one gene hides effects of allele at another gene i recessiveepistasis homozygosity for a recessive allele hides effect of a secondgene a ei labrador retreivers when ee present yellow occurs.
