A Couple Has a Child with Down Syndrome

question 30

Multiple Choice

A couple has a child with Down syndrome. The mother is 39 years old at the time of delivery. Which of the following is the most probable cause of the child's condition?

• A) The woman inherited this tendency from her parents.
• B) The mother had a chromosomal duplication.
• C) One member of the couple underwent nondisjunction in somatic cell production.
• D) One of the gametes in the mother most likely underwent nondisjunction during meiosis.

---

Definitions:

Carl Rogers

An influential American psychologist who developed client-centered therapy and emphasized the importance of a positive self-concept.

Affiliation Motivation

A psychological concept referring to the drive to relate to people on a social basis.

Neuroscience

The scientific study of the nervous system, aiming to understand the biological basis of behavior, thought, and emotion.

Unconscious

The part of the mind that houses thoughts, memories, and desires not within the realm of conscious awareness, influencing behavior and perceptions.