Pairs of DNA

[Shamiam]

What are the four pairs of DNA bases that form in the double helix?

[stanhope11]

G and A are purines, they have 2 rings
C and T are pyrimidines, single ringed

G:C has 3 hydrogen bonds
while A:T has 2 hydrogen bonds


having 4 bases instead of two is important in transcribing genetic information, as each triplet of bases will code for a particular codon of mRNA. This mRNA codon is then translated by the ribosome to give a particular amino acid

If there were less than 4 bases then the DNA wouldn't be able to store as much genetic info and having more would be unnecessary.

[eusebio21]

thats nice

[hemanta]

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