Question

what is an allele?
a. an organism that lives in eukaryotes
b. a group of chromosomes
c. a gene that causes a specific trait
d. a chromosome that determines gender

Explanation:

An allele is a variant form of a gene that is responsible for specific heritable traits. Let's analyze each option:

• Option A describes a symbiont or organism in eukaryotes, not an allele.
• Option B refers to a chromosome set, not an allele.
• Option C matches the definition of an allele as a gene variant linked to a specific trait.
• Option D describes a sex chromosome, not an allele.

Answer:

C. A gene that causes a specific trait