Thứ Tư, 11 tháng 5, 2011

How does one egg cell become different kinds of specialized cells?

How does one egg cell become different kinds of specialized cells?

You start out as one cell and it splits, but how do different kinds of cells like bone cells and nerve cells develop?

Answer by Dream.Big
the process is called cellular differentiation

read about it here

http://en.wikipedia.org/wiki/Cellular_differentiation

Answer by Cal King
That is a field that is studied by developmental biologists or embryologists. At the molecular level, some genes are turned on and other genes are turned off in order to produce certain types of cells.

Add your own answer in the comments!

New Cells
cell

Image by DieselDemon
These were the newer cells, still don’t look that great. Some of them were even four to a cell, way cramped.

Went to the Old Idaho Penitentiary, we were driving around trying to get to Table Rock and found this place. We figured it was only a few bucks, yea, lets take a tour. This place was used from the late 1800′s till the 1970′s. It was pretty neat place to walk around. I could not imagine actually being locked up there though. Just looked very cold in winter and I imagine it just roasted during summer.

Thanks to Boccacino for the texture.

Cell phone blamed in crash
JAMES CITY — A woman reaching for her cell phone lost control of her SUV Tuesday morning on Route 199, winding up in a ditch.
Read more on The Virginia Gazette

www.thinkwell.com Wish Professor Wolfe was your teacher? He can be! Click the link to learn more about Thinkwell’s Online Video Biology Course.


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