Question

marthas child was born with an extra chromosome resulting in down syndrome. this is an example of: collectivism. mutation. heritability. natural selection. need help on this question? read the ebook page on this topic (no penalty) get a hint (fewer points) show answer (no points)

Explanation:

Down - syndrome is caused by an extra copy of chromosome 21, which is a genetic mutation. Collectivism is a social concept, heritability refers to the proportion of variation in a trait due to genetics but is not the specific term for this condition, and natural selection is about the survival and reproduction of organisms based on their traits.

Answer:

B. mutation