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base pairing |
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base pairing, the formation of base pairs in DNA. base pairing Molecular biology The specific complementary hydrogen bonding of the bases–purines and pyrimidines—in a double stranded nucleic acid; BP results in formation of a double helix from 2 complementary single strands; in
DNA the pairs are adenine + thymine and guanine + cytosine; in RNA, the pairs are adenine + uracil and guanine +cytosine. See Hybridization. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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In 1950, a biochemist named Er win Chargaff showed that bases had a one-to-one relationship and suggested base pairing in DNA (Chargaff's rule: A=T, C=G). The ability of one tRNA anticodon to recognize two mRNA codons, as in the third base of a tRNA anticodon pairing with any of a variety of bases that occupy the third position of different mRNA codons instead of pairing according to base pairing rules. The ability of one tRNA anticodon to recognize two mRNA codons, as in the third base of a tRNA anticodon pairing with any of a variety of bases that occupy the third position of different mRNA codons instead of pairing according to base pairing rules. |
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