What Effect Does the Bacterium Wolbachia Pipientis Have on the Fruit

question 21

Multiple Choice

What effect does the bacterium Wolbachia pipientis have on the fruit fly Drosophilia?

• A) It halts egg production.
• B) It feminizes infected males.
• C) It masculinizes infected females.
• D) It halts sperm production.
• E) It atrophies both male and female reproductive organs.

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Definitions:

Covariance

A measure that indicates the extent to which two variables change together, but does not indicate the strength of their relationship.

Independent

Not influenced by or dependent on another variable; in statistics, it often means that the occurrence of one event does not affect the probability of another event.

COV(X,Y)

Covariance between two variables X and Y, measuring the extent to which the variables change together and indicating the direction of their linear relationship.

Marginal Probability

The probability of occurring of a single event without consideration of any other events; it’s the likelihood of a single outcome.