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Pit

pit

region of the plant cell wall in which the secondary wall is interrupted, exposing the underlying primary cell wall. One or more plasmodesmata are usually present in the primary wall, communicating with the other half of a pit pair. May be simple or bordered, in the latter case, the secondary wall overarches the pit field. Do not confuse with coated pits.


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Flaws of Life in a Tube

... environment. Bacteria can survive in tar, use it, degrade it (albeit slowly) and multiply in it. So the fact that a mammoth is not happy in a tar pit is irrelevant about the ability of tar to sustain life.

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by canalon
Sun Oct 09, 2011 4:23 am
 
Forum: Evolution
Topic: Flaws of Life in a Tube
Replies: 41
Views: 41296

Biology Calculation-is this correct?

Hey, for the number of transferrin receptors in each coated pit I've got: 100 000 receptors, 70% localised within the coated pits so: 100 000 x 70% = 70 000 receptors in the coated pits. There are 70 000 receptors and 2165 coated pits so: 70 000/2165 = ...

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by Kezzer
Thu Dec 02, 2010 10:19 pm
 
Forum: Molecular Biology
Topic: Biology Calculation-is this correct?
Replies: 5
Views: 3087

Re: Biology Calculation-is this correct?

... total suface area which is 68micrometers squared. The next question is to then calculate how many transferrin receptors there are in each coated pit, but I just can't get my head round how to do that.

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by Kezzer
Tue Nov 30, 2010 5:16 pm
 
Forum: Molecular Biology
Topic: Biology Calculation-is this correct?
Replies: 5
Views: 3087

Biology Calculation-is this correct?

... this calculation right or not. A baby hamster kidney (BHK) cell has a surface area of 3,400 micrometres². Assume that the endocyte clathrin-coated pits account for 2% of this area and that the surface area of a single coated pit is the same of that of a 100nm diameter clathrin coated vesicle that ...

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by Kezzer
Sun Nov 28, 2010 4:49 pm
 
Forum: Molecular Biology
Topic: Biology Calculation-is this correct?
Replies: 5
Views: 3087

restriction enzymes in dna fingerprinting

... been so close. But in the mean time there are quite a few different techniques that are used, and they are quickly and accurately presented in the pit of all evil: http://en.wikipedia.org/wiki/DNA_profiling

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by canalon
Fri Nov 19, 2010 7:47 pm
 
Forum: Genetics
Topic: restriction enzymes in dna fingerprinting
Replies: 1
Views: 2069
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