Question

in a population of seals, most of the seals have similar coloring. however, one seal has albinism. this seal is white and is almost completely blind. what is most likely the cause of this difference from the rest of the population?
○ gene flow
○ natural selection
○ gene mutation
○ genetic drift

Explanation:

Albinism is a result of a change in the DNA sequence (a gene mutation) that affects pigmentation and vision - related genes. Gene flow involves transfer between populations, natural selection is about survival/reproduction of traits, and genetic drift is random change in allele frequencies (not direct cause of albinism here). So gene mutation is the cause.

Answer:

gene mutation