Biology Stack Exchange is a question and answer site for biology researchers, academics, and students. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

In the beginning of meiosis, there is one cell. During meiosis, 1 cell divides into 4 cells. Does each of these 4 cells divide each into 4 more cells?

share|improve this question
up vote 3 down vote accepted

No, meiosis is not a cycle like mitosis. In mitosis, haploid or diploid cells divide to create two genetically identical cells, and this process can go on and on. On the other hand, meiosis results in 4 genetically unique daughter cells which are also haploid. If a haploid cell was to try to undergo meiosis, there would not be enough genetic material and you would end up with half-chromatids.

share|improve this answer
    
thanks a lot for the help – siddhu99 Jul 22 '13 at 13:44
1  
...and, of course, haploid cells do mitosis too. – Alan Boyd Jul 22 '13 at 16:23
    
quite right @AlanBoyd - I should have drank my coffee this morning. – user560 Jul 22 '13 at 16:28
    
@AlanBoyd - I always taught that mitosis does not occur in haploid cells... – siddhu99 Jul 24 '13 at 14:06
1  
@siddhu99 ... perhaps I should qualify my comment: haploid eukaryotic cells do mitosis. – Alan Boyd Jul 24 '13 at 15:33

In species where an individual can be haploid (for example in haplodiploidy) then cells produced by meiosis do multiply by mitosis in order for the individual to grow.

From a brief scan the Wikipedia article on ploidy nicely summarises the various possibilities.

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.