In Humans, Clear Gender Differentiation Occurs, Not at Fertilization, but After

question 32

Multiple Choice

In humans, clear gender differentiation occurs, not at fertilization, but after the second month of gestation. What is the first event of this differentiation?

• A) formation of testosterone in male embryos
• B) formation of estrogens in female embryos
• C) anatomical differentiation of a penis in male embryos
• D) activation of SRY in male embryos and masculinization of the gonads
• E) activation of SRY in females and feminization of the gonads

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Definitions:

Laboratory Environment

A controlled setting designed for scientific experiments, research, or testing, often equipped with specific instruments and materials.

Case Study

An observation technique in which one person is studied in depth in the hope of revealing universal principles.

Random Sampling

A technique used in research to select a group of subjects for a study from a larger population, ensuring that every individual has an equal chance of being chosen.

Wording Effects

The impact that the choice of words, phrasing, or framing of questions can have on people's responses in surveys or experiments.