If the Dominant Allele a Is Necessary for Hearing in Humans

question 216

Multiple Choice

If the dominant allele A is necessary for hearing in humans, and another allele, B, located on a different chromosome, results in deafness no matter what other genes are present, what fraction of the offspring of the marriage of aaBb  Aabb will be deaf?

• A) none
• B) 1/8
• C) 1/4
• D) 1/2
• E) 5/8

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Definitions:

WRAT4

The Wide Range Achievement Test, 4th edition, an academic skills assessment measuring reading, spelling, and arithmetic skills.

Reading Comprehension

The ability to understand, interpret, and derive meaning from written language.

Effects

Outcomes or changes that result from a particular cause or intervention.

School Counselors

Professionals within educational institutions focused on supporting students' academic, career, personal, and social development.