1. Having black hair is represented by the following alleles: A, B, and C. Which of the following genotypes represent the alleles of having brown hair? CHOICES: A. aabbcc B. AaBbcc C. AAbbcc D. AABBCC 2. Two parents have normal vision, but their son is born colorblind.What must be the mother's genotype using XB for normal and Xb for color-blindvision? CHOICES: B. XBXB C. XBXb D. XbXb A. XX 3. The colorblind son grows up and marries a woman with normal vision. She does not carry the colorblind allele. Their genotypes are XbYb and XBXB,respectively. By using the Punnett square solve for the percentage of the phenotype. What is the percentage that their first child will be colorblind? CHOICES: A.0% B. 25% C. 50% D. 75% 4. Which of the following traits is NOT controlled by multiple genes? CHOICES: A.colorblindness C. freckles B.eye color D. hair texture

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A:

Q: 6)Heterozygote is a)an individual who has two copies of the same allele for a

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Q: a. incomplete dominance b. overdominance c. co-dominance

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A:

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Q: А в F C D E H G J K L

A: B, C, H, J, L will all be carrier.

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Q: #3

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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.