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Cell differentiation

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Cell differentiation

Postby msimonsen1 » Mon Dec 11, 2006 9:33 pm

The question is:
Cell differentiation occurs following:
synapsis
metaphase I
prophase II
metaphase II
telophase II

If I have done my reading correctly, the correct answer is metaphase II

Metaphase, from the ancient Greek μετα (after) and φασις (stage), is a stage of mitosis in the eukaryotic cell cycle in which condensed chromosomes, carrying genetic information, align in the middle of the cell before being separated into each of the two daughter cells.

If this is not correct, can someone help me understand the different transitions? I am really confused

Thanks
Michele
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Postby msimonsen1 » Mon Dec 11, 2006 10:02 pm

OK, in further study, I found this: during telophase II, the cell returns to a nondividing condition. As cytokinesis occurs, new nuclear membranes form, chormosomes uncoil, nucleoli re-form, and the spindles disappear. This stage is followed by differentiation; the four cells mature inot gametes-either sperm or eggs.
With that information, I will be changing the answer to Telophase II. Hopefully I was able to answer my own question correctly. Please let me know.

Thanks again
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Postby honee_v » Tue Dec 12, 2006 1:38 am

msimonsen1 wrote:OK, in further study, I found this: during telophase II, the cell returns to a nondividing condition. As cytokinesis occurs, new nuclear membranes form, chormosomes uncoil, nucleoli re-form, and the spindles disappear. This stage is followed by differentiation; the four cells mature inot gametes-either sperm or eggs.
With that information, I will be changing the answer to Telophase II. Hopefully I was able to answer my own question correctly. Please let me know.



yup i agree.. bcause by definition cell differentiation refers to the process where an initially immature (unspecialized) cell has attained its mature (specialized) form and function.. cheers
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Postby msimonsen1 » Tue Dec 12, 2006 4:27 pm

Thanks for the help. As you can tell, I am a returning student after 30+ years so getting my confidence level up is pretty tough. I really appreciate the help given on this site. I enjoy the fact that answers are not just spoon fed, yet suggestions get us moving in the right direction. Thanks again
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Postby MrMistery » Tue Dec 12, 2006 9:38 pm

you are one of the few that apreciates our homework policy... That's a good thing, shows you really wanna learn..
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Postby msimonsen1 » Thu Dec 14, 2006 10:45 pm

I appreciate this site very much. I know all of you work very hard to help us learn and get better at what we are doing. I want to say thanks to all of you. Doing on line courses make it difficult since you have no one to really bounce things off of. Again, thank all of you for your time and effort.
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