dna構成 核酸
Chargaff s rules state that dna from any species of any organism should have a 1 1 protein stoichiometry ratio base pair rule of purine and pyrimidine bases i e a t g c and more specifically that the amount of guanine should be equal to. Either a t c or g. Dna is a long polymer made from repeating units called nucleotides each of which is usually symbolized by a single letter.




































































