Brandon and Jacob are identical twins.However,Brandon had a finger damaged in an accident,so even if you couldn't tell them apart from a distance,once you saw the finger you knew who was who.This difference is a characteristic of their
A) genotype.
B) personality.
C) heterozygous chromosomes.
D) phenotype.

Question

Quizplus · Accepted Answer

The visible physical difference between the twins (the damaged finger) is a characteristic of their phenotype, which refers to the observable traits of an organism. Genotype, on the other hand, refers to the genetic makeup of an organism, which may or may not be visible. Personality and heterozygous chromosomes are not relevant to explaining the observable difference between the twins.

Brandon and Jacob Are Identical Twins