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A DNA segment has a total of 1000 nucleo...

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?

Text Solution

Verified by Experts

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.
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