The Cross of CcDd × CcDd Results in a 12:3:1

question 68

Multiple Choice

The cross of CcDd × CcDd results in a 12:3:1 phenotypic ratio. What is the expected phenotypic ratio when a CcDd × ccdd testcross is made involving the same two genes? (They are assorting independently.)

• A) 1:1:1:1
• B) 2:1:1
• C) 3:1
• D) 9:3:3:1
• E) 1:1

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Definitions:

Social Disorganization

A theory that attributes high levels of crime and deviance to the absence or breakdown of communal relationships and social institutions.

Functionalist

A viewpoint in sociology which views society as an intricate system where various components collaborate to foster unity and maintain balance.

Religiosity

The intensity and consistency of practice of a person’s (or group’s) faith.

Nuclear Family

A family unit that consists of two parents (of different sexes or the same sex) and their biological or adopted children, living together as a single household.