Worksheet 4 genetics

Worksheet 4 genetics - Presentation 1 What is the...

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Presentation 1: What is the difference between homozygous and heterozygous? A pair of similar allele is homozygous while a pair of different alleles is heterozygous. Presentation 2: What is a hybrid and how is it created? Hybrids are the offspring's of two pure breeding stocks. Pure breeding are homozygous. Each homozygous parent contribute one gene to its hybrid progeny. Presentation 2: How are the different genes from each parent represented? Presentation 2: Which gene is usually expressed in the hybrid cross? Dominant gene Presentation 3: What is the difference between genotype and phenotype? Genotypes represent the genes present. Phenotypes describe the traits expressed. Presentation 3: What is the progeny ratio in a hybrid cross? Ratio 3:1 Presentation 4: What does Mendel’s law of Segregation state? In heterozygote two alleles, segregate to gametes with equal probability. Presentation 4: What are the four ways that gametes with either an R or an r can unite?
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