A Defect or an Extra Chromosome on the _______ Pair

question 53

Multiple Choice

A defect or an extra chromosome on the _______ pair of chromosomes characterizes Down syndrome.

• A)17th
• B)19th
• C)21st
• D)23rd

---

Definitions:

Critical Period

A specific time in an organism's development during which the presence or absence of certain experiences has a long-lasting impact on future psychological capabilities and behavior.

Higher Levels of Thinking

Cognitive processes that involve analysis, synthesis, and evaluation, requiring more advanced intellectual skills and judgement.

Temporary Support

Assistance or help provided on a short-term basis to address an immediate need or crisis.

Verbal Self-warning

A cognitive strategy in which an individual internally vocalizes warnings or reminders to help avoid undesired behaviors or outcomes.