Why is complimentary base pairing vital to the structure of DNA?
It allows enzymes such as RNA polymerase to attach the correct base to the new strand, and therefor conserve your genetic code (keep it the same).
Base pairing refers to the pairing of complimentary nitrogen bases, either during DNA replication, or transcription and translation. In DNA, the bases adenine and thymine pair together, and guanine and cytosine pair together. In RNA, the base uracil takes the place of the base thymine. The bases that pair together are said to be complimentary to each other.
Base pairing refers to the process in which complimentary nitrogen bases pair with one another, in which adenine pairs with thymine and guanine pairs with cytosine. Base pairing is involved in DNA replication in that when each original strand of DNA unzips, new DNA nucleotides pair with their complimentary bases on the original strands, resulting in two identical molecules of DNA, each with an original strand and a new strand.
Watson and Crick. Using cardboard cutouts they recognized the helical shape of DNA and the complimentary base pairing rule. That base A pairs with T and Base C pairs with G. They used information from Rosalind Franklin (who determined the width of DNA and the helical shape) and Chargoff (who discovered the equality rule). The structure of this model developed by Watson and Crick suggested a replication mechanism. Hope this helps!
unwinding: the old stands that make up the parent molecule are unwound or unzipped. a special enzyme called helicase unwinds the molecule.complementary base pairing:new complimentary nucleotides(A to T, and C to G) are positioned by base pairing. joining:the complimentary nucleotides join to form new strands. each daughter strand contains one old strand and one new strand.
Why can you predict the base sequence of one stand in a molecule of DNA if you know the sequence of the other stand?
DNA is made up four nucleotide bases,a pentose sugar and a phosphate. The four nucleotides are adenine, guanine, cytosine and thymine. Due to the nature of these molecules they fall into two groups called purines ( adenine an guanine) and pyrimidines ( cytosine and thymine). The bases have complimentary base pairing causing the double helix shape of DNA. adenine always bonds with thymjine and guanine with cytosine. So you can predict what the base sequence…
How do the complementary base pairing requirements ensure DNA's ability to act as the genetic material?
Base pair complementarity ensures faithful DNA replication. Remember that a base can only pair with a definite pair and not with just about any base therefore this ensures high fidelity of replication. If guanine can only pair with cytosine the same way that adenine can .only pair with thymine then the copying of the DNA will be accurate.