The Phenotypic Ratio Resulting from a Dihybrid Cross of Two

question 60

Multiple Choice

The phenotypic ratio resulting from a dihybrid cross of two heterozygote individuals showing independent assortment is expected to be

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

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Definitions:

Variance

A statistical measure of dispersion, indicating how spread out the values of a dataset are.

Symbol

A mark or character used as a conventional representation of an object, function, or process.

Numerator

The top number in a fraction, indicating how many parts of a whole are being considered.

Two-tailed Test

A statistical test in which the critical area for rejection of the null hypothesis is on both sides of the distribution.