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It was once believed that cells grown in laboratory tissue

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It was once believed that cells grown in laboratory tissue [#permalink]

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New post 29 Nov 2006, 08:51
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8. It was once believed that cells grown in laboratory tissue cultures were essentially immortal. That is, as long as all of their needs were met, they would continue dividing forever. However, it has been shown that normal cells have a finite reproductive limit. A human liver cell, for example, divides 60 times and then stops. If such a cell divides 30 times and then is put into a deep freeze for months or even years. It “remembersâ€
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Re: CR on tissue cultures!!! [#permalink]

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New post 29 Nov 2006, 09:14
8. It was once believed that cells grown in laboratory tissue cultures were essentially immortal. That is, as long as all of their needs were met, they would continue dividing forever. However, it has been shown that normal cells have a finite reproductive limit. A human liver cell, for example, divides 60 times and then stops. If such a cell divides 30 times and then is put into a deep freeze for months or even years. It “remembersâ€
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New post 29 Nov 2006, 12:25
B...
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New post 29 Nov 2006, 15:11
B !
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New post 29 Nov 2006, 19:38
straight B
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New post 29 Nov 2006, 19:41
Only we need to be careful about CANNOT, rest is easy.
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New post 30 Nov 2006, 02:25
ak_idc wrote:
Only we need to be careful about CANNOT, rest is easy.


True
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New post 30 Nov 2006, 03:11
guys the oA is B!
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Yes B
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New post 30 Nov 2006, 12:50
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Re: CR on tissue cultures!!! [#permalink]

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New post 30 Nov 2006, 20:33
[quote="jyotsnasarabu"]8. It was once believed that cells grown in laboratory tissue cultures were essentially immortal. That is, as long as all of their needs were met, they would continue dividing forever. However, it has been shown that normal cells have a finite reproductive limit. A human liver cell, for example, divides 60 times and then stops. If such a cell divides 30 times and then is put into a deep freeze for months or even years. It “remembersâ€
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New post 02 Dec 2006, 00:24
b 2
  [#permalink] 02 Dec 2006, 00:24
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It was once believed that cells grown in laboratory tissue

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