Punnett Square Worksheet Select 5 of the 6 scenarios to complete this activity. You will only be graded on the 5 you complete. 1. Brown eyes is a dominant trait for eye color. A woman with dark brown eyes (BB) has children with a man with blue eyes (bb). What are the eye color possibilities of the offspring? Provide the genotype and phenotype ratios using the Punnett square given below. Genotypes Phenotypes 2. In Mendel's monohybrid cross of pea plants what was the result of crossing a plant with yellow pods (Yy) and a plant with yellow pods (Yy). Provide the genotype and phenotype ratios using the Punnett square given below. Genotypes Phenotypes 3. When an offspring's phenotype is a combination of the parents' phenotypes it is called incomplete dominance. Both the alleles are expressed. A cross between a radish plant that produces round radish and a radish plant that produces oblong radish results in producing oval radish (heterozygous genotype). What is the outcome of the cross between a round radish plant (RR) and an oval radish plant (Rr)? Provide the genotype and phenotype ratios using the Punnett square given below.

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Genetic Variation

Genetic variation refers to the variation in the genome sequences between individual organisms of a species. Individual differences or population differences can both be referred to as genetic variations. It is primarily caused by mutation, but other factors such as genetic drift and sexual reproduction also play a major role.

Quantitative Genetics

Quantitative genetics is the part of genetics that deals with the continuous trait, where the expression of various genes influences the phenotypes. Thus genes are expressed together to produce a trait with continuous variability. This is unlike the classical traits or qualitative traits, where each trait is controlled by the expression of a single or very few genes to produce a discontinuous variation.