Answer: The base sequence is GCAAT.
Step-by-step explanation:
A DNA is a double stranded molecule containing two antiparallel polynucleotide chain whose sequence are not identical in either base sequence or composition, rather the two strands are complementary to each other. This means that in base pairing, wherever adenine is found in one chain, thymine is found in the other while wherever guanine occurs in one chain, Cytosine is found in the other.