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Bases

Base sequence

(Science: molecular biology) The order of nucleotide bases in a dna molecule.


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why only four bases

why has nature selected only four bases to make the genetic material. why not more or less than that.

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by jannat
Sun Sep 28, 2014 6:22 am
 
Forum: Molecular Biology
Topic: why only four bases
Replies: 0
Views: 43

Re:

... the caveat that perhaps there was an "ethical reason" to call DNLee a whore. Perhaps this is merely being diplomatic and covering bases, but this is not the sort of situation in which that plays well. There is a sad irony in that title of this thread being, "When is it okay ...

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by dogen
Sun Oct 13, 2013 3:06 am
 
Forum: General Discussion
Topic: When is it okay to call a scientist a whore?
Replies: 79
Views: 77920

Re: Virology - Calculations

... kb) of double stranded DNA. 90.5% is coded into 1262 ORFs. What would be the average size of a coded protein in kiloDaltons? -1184 kb is 1184000 bases times the 660 Da per base pair gives 7.8144x10^8Daltons... Not sure where to go to further this. Somehow, I think a codon of 3 nucleotides (990 ...

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by JackBean
Tue Sep 17, 2013 3:58 pm
 
Forum: General Discussion
Topic: Virology - Calculations
Replies: 1
Views: 1764

Virology - Calculations

... kb) of double stranded DNA. 90.5% is coded into 1262 ORFs. What would be the average size of a coded protein in kiloDaltons? -1184 kb is 1184000 bases times the 660 Da per base pair gives 7.8144x10^8Daltons... Not sure where to go to further this. Somehow, I think a codon of 3 nucleotides (990 ...

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by mkay28
Mon Sep 16, 2013 1:05 am
 
Forum: General Discussion
Topic: Virology - Calculations
Replies: 1
Views: 1764

The question about TATA sequence flexibility

... I read this article about TATA-Binding Protein: Second, the protein uses specially-placed amino acids to interact with DNA bases. As shown in the lower picture, four phenylalanine amino acids jam into the DNA minor groove and form the kinks that bend the DNA. There are also ...

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by Fantomas
Sat Aug 31, 2013 10:57 am
 
Forum: Molecular Biology
Topic: The question about TATA sequence flexibility
Replies: 1
Views: 1784
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