Dictionary » S » Sac

Sac

sac

A pouch or cavity. A case or sheath especially a pollen sac or moss capsule.A structure resembling a bag in an animal.A bag like structure.


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Stem Cells

... Two factors- one which induces tumor for example, and other which makes an animal immune to a X pathogen, can both be injected into yolk sac or bone marrow. If the tumor developed and animal is protected against infection upon exposure to that X pathogen, we can say vaguely that it has ...

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by Shaanu
Thu May 09, 2013 3:00 pm
 
Forum: Molecular Biology
Topic: Stem Cells
Replies: 0
Views: 955

Stem Cells

... Two factors- one which induces tumor for example, and other which makes an animal immune to a X pathogen, can both be injected into yolk sac or bone marrow. If the tumor developed and animal is protected against infection upon exposure to that X pathogen, we can say vaguely that it has ...

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by Shaanu
Thu May 09, 2013 9:45 am
 
Forum: Genetics
Topic: Stem Cells
Replies: 4
Views: 2644

Help me with my homework.

... me for my homework plezzzzzzzzzz :( :? 1)imagine there are two cells in plant tissue and undergo to osmosis, a) calculate the osmosis of xylem sac b)the water move from cell A to B . [url]yes or no and why[/url] c)the water move from cell B to A.[url]yes or no and why[/url] d)the dynamic equi-librium ...

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by roro99
Thu Oct 11, 2012 3:57 pm
 
Forum: Cell Biology
Topic: Help me with my homework.
Replies: 1
Views: 1540

Plant physiology question

... of the resulting structures after fertilization in the plants life cycle? Resulting sporophyte, Resulting gametophyte, Spores, Sporangium sac in the sori, Resulting antheridium sac, Resulting spore mother cell, Cells that make up rhizoids I'm assuming that there would be 16 chromosomes. ...

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by inglej
Tue Apr 03, 2012 5:41 am
 
Forum: General Discussion
Topic: Plant physiology question
Replies: 0
Views: 1427

Re: sporophytic haploids....is it true?

... microscopic. As illustrated in the double fertilization entry, the male gametophyte is the pollen grain and the female gametophyte is the embryo sac. However, parthenogenetic development of unfertilized eggs can occur, but it is very rare. Haploid sporocytes were first reported in Datura stramonium ...

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by sara135
Tue Jul 12, 2011 8:23 am
 
Forum: Botany Discussion
Topic: sporophytic haploids....is it true?
Replies: 6
Views: 8726
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