A Test Cross

question 15

Multiple Choice

A test cross

• A) is used to determine if an organism that is displaying a dominant trait is heterozygous or homozygous for that trait.
• B) is used to determine if an organism that is displaying a recessive trait is heterozygous or homozygous for that trait.
• C) causes the loss of hybrid vigor.
• D) results in an F₂ generation with a phenotypic ratio of ³/₄ dominant to ¹/₄ recessive.
• E) results in the same alleles being transferred from generation to generation.

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Definitions:

Experimental Group

In research, the group of subjects that receives the treatment or intervention being tested, as opposed to the control group which does not.

Independent Variable

The variable in an experiment that is manipulated or changed by the researcher to investigate its effect on the dependent variable.

Rate Of Productivity

A measure of the efficiency of production, often quantified as the amount of output per unit of input in a given time period.

Loudness Of Music

The perceived volume or intensity of sound, particularly in the context of music, which can influence emotional response and physical health.