The Ability to Roll the Tongue Is Caused by a Dominant

question 59

Multiple Choice

The ability to roll the tongue is caused by a dominant allele. A woman is a "roller," but one of her parents is not. The woman is expecting a child with a man who is a "nonroller." What is the probability that their first child will be a "roller"?

• A) 1/4
• B) 0
• C) 3/4
• D) 1/2
• E) 1

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Definitions:

Factor

One of two or more expressions that are multiplied together to form a product or an element that divides another number or expression without leaving a remainder.

Factor

A number or algebraic expression that divides another number or expression evenly—without leaving a remainder.

Trinomial

A polynomial with three terms.

Trinomial

A polynomial with three terms, often expressed in the form \(ax^2+bx+c\) where \(a\), \(b\), and \(c\) are constants.