Question : A DNA segment has a total of 1000 nucleotides, out of which 240 are adenine containing nucleotides. How many pyrimidine bases this DNA segment possess?

Question : A DNA segment has a total of 1000 nucleotides, out of which

1.	Question : A DNA segment has a total of 1000 nucleotides, out of which 240 are adenine containing nucleotides. How many pyrimidine bases this DNA segment possess?
Answer» Solution :Pyrimidine=500. According to Chargaff's RULE, A=T A=240, hence T=240, A+T=240+240=480 So, G+C=1000-480=520. G=C, THEREFORE, C=520/2=260. THUS, pyrimidine=C+T=260+240=500.