A Researcher Experimenting with Amphibian Embryos Is Able to Prevent

question 239

Multiple Choice

A researcher experimenting with amphibian embryos is able to prevent the expression of the transcription factor Goosecoid in early organizer cells.The most likely result of this intervention is that

• A) anterior growth factors will be suppressed.
• B) growth factors will be activated that are necessary for head formation.
• C) the head will form but the trunk and tail will not form.
• D) certain growth factors will be suppressed and the head will form.
• E) growth factors preventing head formation will remain active.

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Definitions:

Evolutionary Perspective

An approach in psychology that explains mental and psychological traits—such as memory, perception, or language—as adaptations, i.e., as the functional products of natural selection.

Inferential Heuristics

Mental shortcuts that allow individuals to make judgments and solve problems quickly but can sometimes lead to errors in reasoning.

Conjunction Fallacy

A logical error where individuals mistakenly believe that specific conditions are more probable than a single general one.

Base Rates

The basic rate or frequency at which an event occurs within a given population under general conditions.