Correct Option (c)
Reason : In DNA AGCT is associated with pair ATGC because in a DNA molecule, the purine adenine in either chain is associated with the pyrimidine thymidine on the other. Similarly, purine guanine in either chain is associated with pyrimidine cytosine on the other.
Correct Option (c) Reason : In DNA AGCT is associated with pair ATGC because in a DNA molecule, the purine adenine in either chain is associated with the pyrimidine thymidine on the other. Similarly, purine guanine in either chain is associated with pyrimidine cytosine on the other.