The Condition in Which an Extra Portion of a Chromosome

question 2

Multiple Choice

The condition in which an extra portion of a chromosome is present in each cell is called:

• A) Reciprocal translocation
• B) Partial trisomy
• C) Inversion
• D) Down syndrome

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Definitions:

Extinction

In psychology, the gradual weakening and eventual disappearance of a conditioned response when the conditioned stimulus is no longer paired with the unconditioned stimulus.

Conditioned Stimulus

A stimulus that, after association with an unconditioned stimulus, comes to trigger a conditioned response.

Unconditioned Stimulus

A stimulus that naturally triggers a response without the need for prior learning.

Counterconditioning

A therapeutic process aimed at reversing the negative effects of a conditioned response by introducing a new, positive stimulus.