What Is the "Safety Valve" That Operates in Normal (Nondegenerate)

question 166

Multiple Choice

What is the "safety valve" that operates in normal (nondegenerate) stars?

• A) If thermonuclear reactions proceed too quickly, the star runs out of fuel before anything drastic happens.
• B) If the stellar gas is suddenly heated, it expands and cools.
• C) If the star gets too big, it collapses into a black hole.
• D) If the pressure becomes too high, electrons combine with protons to relieve the pressure.

---

Definitions:

Maternal Effect Genes

Genes of the mother that are transcribed during oogenesis and subsequently affect the development of the embryo. Compare with zygotic genes.

Drosophila Development

The study of growth and development processes in the fruit fly Drosophila melanogaster, a model organism in genetics and developmental biology.

Developmental Genetics

The study of how genetic mechanisms contribute to the process of organismal development, from fertilization to mature form.

Drosophila Melanogaster

A species of fly commonly used in genetic research, known for its quick life cycle and relatively simple genome, which makes it an ideal model organism.