Experimental Overexpression of β-Catenin in Another Region of an Amphibian

question 134

Multiple Choice

Experimental overexpression of β-catenin in another region of an amphibian embryo results in

• A) failure of cleavage to occur.
• B) induction of a second axis of embryo formation.
• C) failure of gastrulation to occur.
• D) failure of invagination to occur.
• E) speeding up of the cleavage process.

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Definitions:

Organic Amnesia

A form of amnesia caused by brain injury or damage affecting memory, not linked to psychological factors.

Dissociative Fugue

A rare psychiatric disorder characterized by reversible amnesia for personal identity, including the memories, personality, and other identifying characteristics of individuality.

Psychoanalytic Theory

A set of theories originating from Sigmund Freud, which suggest that human behavior is profoundly influenced by unconscious motives.

Conversion Disorder

A mental condition where psychological stress is expressed through physical symptoms that have no medical basis.