Complementary

... in DNA. If you think how it happens, you will realize that knowing the proportion of one of the base, allow you to calculate the proportion of the complementary base X=Y and the proportions of the other 2 Z=W= (100%-(X+Y))/2

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By self-complementarity, do you just mean the sequence and its reverse complement are the same? If so, there are plenty of reverse complementary sequence out there, and then you just need to compare the two strings to see if they're the same...

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... complex that replicates DNA. DNA replication begins by a "bubble" forming in the molecule where the first few hydrogen bonds between complementary base pairs are broken opening the DNA molecule for replication. From here Helicase works in both directions opening the DNA molecule. ...

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... is done enzymatically! That means just to get the plans for the hemoglobin enzymes are involved in sync with the RNA polymerase to produce a COMPLEMENTARY messenger RNA. How many amino acids are in the DNA and RNA for the hemoglobin? How many amino acids are in the enzymes which transcribe ...

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... a nice explanation of the technique: For plasmid manipulations, this technique has largely been supplanted by a PCR-like technique where a pair of complementary mutagenic primers is used to amplify the entire plasmid. This generates a nicked, circular DNA which can undergo repair by endogenous ...

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