When Female Fruit Flies Mate with Two Different Males on the Same

question 32

Multiple Choice

When female fruit flies mate with two different males on the same day,

• A) the first male's sperm fertilizes all of the eggs.
• B) the first male's sperm fertilizes most of the eggs.
• C) the second male's sperm fertilizes most of the eggs.
• D) the first and second males fertilize equal numbers of eggs.
• E) none of the eggs become fertilized.

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