In sperm competition studies with fruit flies, Geoff Parker made which of the following observations?

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The first male to mate with a female fathered a greater proportion of offspring.

  

Very few females mate with more than one male prior to fertilization.

  

Sperm from different males compete to fertilize eggs.

  

When two males mated with one female, the proportion of offspring fathered by each male was 50–50.

 

asked Jan 1, 2013 in Biology by anonymous
    

1 Answer

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Sperm from different males compete to fertilize eggs.

 

answered Jan 1, 2013 by anonymous

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