What is the null hypothesis?

Question

Quizplus · Accepted Answer

The null hypothesis is a statement that there is no difference or no effect between the variables being tested. Option C states that natural selection has no effect on a population, which is a clear statement of the null hypothesis. Option A is not a statement of the null hypothesis as it suggests that genetic drift and gene flow both occur, whereas a null hypothesis would state that one of these factors does not exist or have an effect. Option B is a broad statement that cannot be tested using a hypothesis, as it would require every single biological trait to be examined. Option D is a statement about an expected behavior and does not directly provide a null hypothesis.

What Is the Null Hypothesis