Which of the Following Is NOT True Regarding Cell-Type Specification

question 31

Multiple Choice

Which of the following is NOT true regarding cell-type specification in developing animals?

• A) Members of the MyoD/myogenin family of transcription regulators drive cells to differentiate into muscle cells.
• B) Members of the Achaete/Scute family of transcription regulators drive the cells to form endothelial layers.
• C) Many proteins that induce the differentiation of particular cell types belong to the bHLH (basic helix-loop-helix) class of transcription regulators.
• D) Eyeless is both necessary and sufficient to generate eye structures composed of various specialized cell types in Drosophila.
• E) In vertebrates, loss of the Eyeless homolog Pax6 leads to an animal without eyes.

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Definitions:

Libido

In psychoanalytic theory, it represents the energy of the sexual drive as a component of the life instinct.

Sexual Instinct

An intrinsic part of human behavior, driven by the biological and psychological urge to engage in sexual activities.

Pleasure Principle

A psychoanalytic concept suggesting that individuals seek immediate gratification of needs and desires to experience pleasure and avoid pain.

Collective Unconscious

A concept in Jungian psychology referring to part of the unconscious mind shared among beings of the same species, containing universal experiences and archetypes.