In an experiment to distinguish genetic versus environmental effects on a phenotype it is important to make sure that the test individuals
A)are as genetically identical as possible
B)have the greatest varinace at all losi as possilble
C)have the same parents
D)are subjected to a natural environment.

Question

Quizplus · Accepted Answer

To distinguish genetic versus environmental effects on a phenotype, it is important to control for genetic variation as much as possible. This can be done by using individuals that are as genetically identical as possible, either through inbreeding or through selecting individuals from an inbred population. This way, any differences observed in the phenotype can be attributed to environmental factors rather than genetic factors. The other choices (B, C, and D) are not relevant to this objective.

In an Experiment to Distinguish Genetic Versus Environmental Effects on a Phenotype