What is a haploid number and diploid number?

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ricky g

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"If the haploid number for a species is 3, each dividing diploid cell will have how many chromatids at metaphase?"
The answer is 12... I thought it was 3. What is haploid and what is diploid??
 
haploid is half the number of chromosomes, diploid is full
so the cell would normally have 6
however, since it is dividing it has double the genetic material so that both of the new cells have all of the genetic material- thus the dividing cell has 12
 
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