How Many Mutations Need to Occur in Snails in Order

question 64

Multiple Choice

How many mutations need to occur in snails in order for the direction of coiling to reverse and affect mating?

• A) one to encourage mating
• B) one to prohibit mating
• C) two to encourage mating
• D) two to prohibit mating

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Definitions:

Null Hypothesis

The default hypothesis that there is no effect or no difference, and any observed difference is due to sampling or experimental error.

Population Proportions

A statistical measure that indicates the fraction of the population possessing a particular attribute or characteristic.

Normal Approximation

The process of using the normal distribution as an approximation for another distribution, commonly applied when the sample size is large.

Binomial

A type of probability distribution with two possible outcomes, used to model situations with fixed numbers of trials and the same probability of success.