What Is the Source of the Extra Chromosome 21 in an Individual

question 5

Multiple Choice

What is the source of the extra chromosome 21 in an individual with Down syndrome?

• A)nondisjunction in the mother only
• B)nondisjunction in the father only
• C)duplication of the chromosome
• D)nondisjunction in either parent

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Definitions:

Tabula Rasa

A theory suggesting that individuals are born without built-in mental content, and all knowledge comes from experience or perception.

Associative Learning

A learning process in which a new experience is connected with a previously unrelated stimulus, leading to a change in behavior.

Classical Conditioning

An educational process where two signals are consistently linked together; initially, the response is triggered by the second signal but over time, it starts being triggered by the first signal alone.

Associative Learning

The process by which an individual learns to connect two stimuli or a behavior and its consequence, forming new knowledge.