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R loop

R loop

(Science: molecular biology) A single stranded loop section of dNA formed by the association of a section of ssRNA with the other strand of the dna in this region whereby one dna strand is displaced as the loop.

mature mRNA can be used to form loops from exons with the intervening double stranded linear regions being introns.

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Why is ATP rather than GTP, CTP or TTP the energy currency?

Probably the result of some feedback loop throughout evolution. My guess is as soon as ATP was being used/produced a bit more than the others, a feedback loop set in, and it became dominant. Obviously, all 4 are used by DNA polymerases, and ...

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by BlahBlahBlah
Fri Jul 12, 2013 1:12 pm
Forum: Molecular Biology
Topic: Why is ATP rather than GTP, CTP or TTP the energy currency?
Replies: 6
Views: 9517

Re: parallel binding of miRNA with mRNA

... by mfold and the secondary structure fulfilled the criteria of miRNA. Later this miRNA specific primer was designed and validated through stem-loop RT PCR followed by end-point PCR. So it was confirmed that this miRNA get expressed. we have analyzed it's expression patterns under different ...

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by tareq07
Sun Jan 20, 2013 8:53 am
Forum: Genetics
Topic: parallel binding of miRNA with mRNA
Replies: 9
Views: 6398

Re: Codons are triplets, but what's a Singlet, Doublet, etc?

... FormatZeros) 'Clear string for forming Base4 or Base5 String, for showing Codon Number in disk file. MathBaseNumStr = "" 'Loop for each of the Codon Letters in this Codon Size, numbering starts a 0. For LetterNum = 0 To CodonSize - 1 'Power Of 4 counts 1, 4, 16, 64, ...

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by GaryGaulin
Mon Oct 29, 2012 7:18 am
Forum: Bioinformatics
Topic: Codons are triplets, but what's a Singlet, Doublet, etc?
Replies: 4
Views: 14442

histology about kidney !

HOw can we identify the cell in PCT (proximal convolunted tubule) & decending limb of loop of henle ? Also ,, how can we identify the cell of PST(proximal straighted tubule) & PCT ???

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by ramichow
Thu Sep 13, 2012 4:39 am
Forum: Cell Biology
Topic: histology about kidney !
Replies: 1
Views: 2090

Re: Theories - Origin of Life

Sorry for being out of the loop for a while. My early childhood bout of chicken pox has revisited me in the form of shingles and has left me low for about ten days. Still not over it but have got back online to have a look at progress, ...

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by scottie
Wed Mar 28, 2012 1:09 pm
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 563
Views: 1127450
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