Iit jam biotechnology

there are 2pyarimidine and 2purine so probability of 2/4is 1/2 or after division it is0.5 total Dna 40percent therefore 20percent purine and 20percent pyrimidine should be present...

thank you sir

There are 2 purine and 2 pyrimidine. so probablity of purine is 2/4 i.e. 1/2 or 0.5 Total Dna 40% Therefore 20% purine and 20% pyrimidine should be present.