Genes Usually Have Multiple Alleles

question 22

Multiple Choice

Genes usually have multiple alleles. Alleles that have the same phenotype can be grouped together. Alleles can also be ranked in an allelic series, such as with agouti, which governs coat color in dogs and other animals. Rank the following alleles for the hypothetical gene C, governing hair color, in order of dominance (most dominant first) .
There are four alleles: C^r, C^y, C^b, and C^w. Individuals homozygous for these alleles have red, yellow, black, and brown hair, respectively. C^r_ individuals have red hair. Heterozygotes carrying C^y do not have yellow hair. In a cross between homozygous C^b and C^w individuals, ¾ of the offspring have brown hair.
-C^y

• A) 1 (most dominant)
• B) 2
• C) 3
• D) 4 (least dominant)

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Definitions:

Social Control

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Resource Mobilization Theory

A theory in social movements that emphasizes the importance of resources, such as money, labor, and materials, for the success of social movements.

New Social Movement Theory

A sociological theory that explains the emergence, dynamics, and impacts of social movements that focus on identity, quality of life, and human rights rather than economic concerns.