The Phenotypes and Genotypes That Result from a Cross of Aa

question 82

Multiple Choice

The phenotypes and genotypes that result from a cross of Aa and aa (A = normal pigmentation and a = albinism) are

• A)phenotypes:all normal; genotypes:50% heterozygous and 50% homozygous recessive.
• B)phenotypes:all albino; genotypes:all homozygous recessive.
• C)phenotypes:50% normal and 50% albino; genotypes:50% heterozygous and 50% homozygous recessive.
• D)phenotypes:all albino; genotypes:50% heterozygous and 50% homozygous recessive.

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Definitions:

Mean

The average value of a group of numbers, calculated by dividing the sum of all the numbers by the count of the numbers.

Frequency Distribution

a representation, often in the form of a table, that shows the number of observations within a particular range of values, used in statistics to summarize data sets.

Data Set

A collection of related sets of information that consists of separate elements but can be manipulated as a unit by a computer.

Data Set

A collection of data, often used for analysis, typically consisting of related sets of information.