What Is the Ratio of Phenotypes in the Offspring Produced

question 94

Multiple Choice

What is the ratio of phenotypes in the offspring produced by the cross Aa × Aa? Assume complete dominance for the trait.

• A) 100% dominance
• B) 50% dominant:50% recessive
• C) 75% dominant:25% recessive
• D) 25% dominant:75% recessive
• E) 100% recessive

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Definitions:

pH

A numerical scale used to specify the acidity or alkalinity of an aqueous solution, ranging from 0 (very acidic) to 14 (very basic).

Fischer Projection

A two-dimensional representation of a three-dimensional organic molecule by projection onto a plane, used to depict configurations around chiral centers.

L-Glutamic Acid

An amino acid used in protein synthesis and is important in cellular metabolism, neurotransmission, and as a flavor enhancer in food.

pH

A scale used to specify the acidity or basicity of an aqueous solution, ranging from 0 to 14, where 7 is neutral, lower values are acidic, and higher values are basic.