In Humans, Ability to Roll the Tongue (R) Is Dominant

question 128

Multiple Choice

In humans, ability to roll the tongue (R) is dominant to being unable to roll (r) . Having freckles (F) is dominant to having no freckles (f) . A freckled tongue-roller could have which of the following genotypes?

• A)RRFF
• B)RrFf
• C)rrFF
• D)RRFF and RrFf only
• E)All of these choices are correct.

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Definitions:

Diagnostic Labels

terms or categories used by healthcare professionals to classify and describe specific psychological or medical disorders.

Mental Health Professionals

Individuals specialized in diagnosing, treating and providing support for mental health issues, including psychologists, psychiatrists, and counselors.

Complex Symptoms

Symptoms that involve multiple systems of the body or have numerous contributing factors, making them difficult to diagnose or treat.

ADHD

A neurodevelopmental disorder characterized by problems with focus, hyperactivity, and impulsiveness.