Wednesday, March 10, 2010
why can't mules reproduce?
From Understanding Genetics website:
http://www.thetech.org/genetics/ask.php?id=225
"A mule gets 32 horse chromosomes from mom and 31 donkey chromosomes from dad for a total of 63 chromosomes. (A horse has 64 chromosomes and a donkey has 62)."- the odd number of chromosomes (and difference in size and sequence) do not allow for meiosis to take place, and thus egg and sperm are not made.
-brie
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1 comment:
ah..from today's quiz.
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