Discover science 6

Discover science 6

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All the eggs are made before the female is born. A human male makes trillions of ... Question: Why do sex cells not have the same number of chromosomes as body cells do? (They divide by a different ... In humans, for example, if the sex cells had 46 chromosomes each, the zygote would have too many chromosomes. ) a€c Explain that not all of the sex cells formed after meiosis survive. Male germ cellsa#39;anbsp;...

Title:Discover science 6
Author:Robert G. Guy, Robert J. Miller, Mary Jane Roscoe, Anita Snell, Sheri L. Thomas
Publisher: - 1989


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