which among the following remain constant for given species

1. A+C/T+G
2. G+C/A+T
3. A+T/G+C
4. T+C/G+A

Hello student
Correct answer is 2. G+C / A+T
Chargaff’s Rule states that DNA from any cell of all organisms should have a 1:1 ratio of pyrimidines and purines bases A=T and G=C.