Question

If the sequence of one strand of DNA is 5'-AACTGAGCT-3', what is the sequence of the other strand?

a)3'-AACTGAGCT-5'
b)3'-TCGAGTCAA-5'
c)3′-TTGACTCGA-5′
d)5′-TTGACTCGA-3′
e)5′-AACUGAGCU-3′

Answer 1

The sequence of the other strand of DNA is 3'-TTGACTCGA-5'.

Step-by-step explanation:

The sequence of the other strand of DNA is 3'-TTGACTCGA-5'. This is because in DNA, the nucleotides bond together with complementary bases. Adenine (A) pairs with thymine (T), and guanine (G) pairs with cytosine (C). So, the complementary strand of the given sequence is formed by replacing each nucleotide with its complementary base: A with T, T with A, C with G, and G with C.