Alfred Jost Did an Experiment in Which He Removed the Gonads

question 146

Multiple Choice

Alfred Jost did an experiment in which he removed the gonads from male and female rabbit fetuses and then observed their subsequent sexual development. All of the gonadectomized animals developed a female phenotype. This experiment demonstrated

• A) the importance of the X chromosome in female development.
• B) the importance of the Y chromosome in male development.
• C) the importance of the ovaries in female development.
• D) the importance of the testes in male development.
• E) that rabbits are not good research models.

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Definitions:

Prefrontal Cortex

The front part of the frontal lobes of the brain, involved in complex behaviors including planning and personality development.

Stimulating Current

An electrical current used for therapeutic purposes, to stimulate nerves or muscles.

Psychodynamic Therapy

A therapeutic approach focusing on unconscious processes as they are manifested in an individual's present behavior, with an aim to resolve foundational emotional conflicts.

Behavioral Therapy

A treatment approach that focuses on modifying negative behaviors through reinforcement methods.