Why Don't We Expect to Find Life on Planets Orbiting

question 24

Multiple Choice

Why don't we expect to find life on planets orbiting high-mass stars?

• A) The lifetime of a high-mass star is too short.
• B) The stars are too hot to allow for life.
• C) Planets cannot have stable orbits around high-mass stars.
• D) The high-mass stars emit too much ultraviolet radiation.

---

Definitions:

X-Linked Recessive

A mode of genetic inheritance where a mutation in a gene on the X chromosome causes the phenotype to be expressed primarily in males, who have only one X chromosome.

Hemophilia

A genetic disorder that impairs the body's ability to make blood clots, leading to excessive bleeding from minor injuries.

Sex-Linked Disorders

Genetic diseases that are determined by genes located on the sex chromosomes, often manifesting differently between sexes.

Hemophilia

A rare genetic disorder where the blood's ability to clot is severely reduced, causing excessive bleeding from even slight injuries.