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Pyrimidine

pyrimidine

(Science: biochemistry) A family of 6-membered heterocyclic compounds occurring in nature in a wide variety of forms. They are planar and aromatic in character and include several nucleic acid constituents (cytosine, thymine, and uracil) and form the basic structure of the barbiturates.

It is the parent compound of the pyrimidine bases of nucleic acid.


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heyy if anyone can help

... from the books, or simply search from the internet. there are 4 bases that builds the nucleic acid, comprises purine (adenine and guanine) and pyrimidine (thymine (in DNA)/uracil (in RNA), and cytosine). it's the gene expression. every cell that builds the body is differentiated and specialized ...

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by whizzbee
Sat Jan 10, 2009 3:01 pm
 
Forum: Genetics
Topic: heyy if anyone can help
Replies: 1
Views: 411

Re: Primers

The "Y" usually means any pyrimidine. So each primer is probably a mixture of two. For the first primer the two possible end sequences would be GTT and GCT; for the second primer they would be GTC and GCC. I don't know if that makes ...

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by blcr11
Thu Jan 08, 2009 2:07 pm
 
Forum: Molecular Biology
Topic: Primers
Replies: 3
Views: 438

HIV Exposure to air

... heard of it, it's hardly my fault. And can you tell me in which part of my post I said there would be thymidine dimers in HIV? Cytosine is a pyrimidine as well, and it can undergo dimerization as well as deamination under UV irradiation. I said UV light can cause "biochemical changes ...

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by biohazard
Fri Dec 12, 2008 8:00 am
 
Forum: Microbiology
Topic: HIV Exposure to air
Replies: 6
Views: 2649

HIV Exposure to air

... that cause the inactivation of the virus (in air). For example, UV light causes biochemical changes in the microbe's nucleic acids, such as pyrimidine dimers that render the given nucleotide inactive. Also, mere drying is one mechanism - apparently when drying, the viral proteins get cross-linked ...

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by biohazard
Mon Dec 08, 2008 8:14 am
 
Forum: Microbiology
Topic: HIV Exposure to air
Replies: 6
Views: 2649

Miller experiment and it's contribution to origin of life

... were done yielding more complex results such as: - all 20 amino acids, ATP, some sugars, lipids and even more complex compounds such as purine and pyrimidine bases of RNA and DNA I mean, how can you argue against all of these evidences?... life must have originated in this fashion... again, I am ...

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by rajvandam
Mon Sep 15, 2008 12:26 am
 
Forum: General Discussion
Topic: Miller experiment and it's contribution to origin of life
Replies: 0
Views: 388
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