Question

which sequence of dna would be complementary to this sequence: atg tga cag
tac act gtc
gta agt gac
atg tga cag
uac acu guc

Explanation:

Step1: Recall base - pairing rules

In DNA, adenine (A) pairs with thymine (T), and cytosine (C) pairs with guanine (G).

Step2: Find complementary bases for each base in the given sequence

For the sequence ATG TGA CAG, the complementary bases are:
A (in ATG) pairs with T, T (in TGA) pairs with A, G (in ATG) pairs with C, T (in TGA) pairs with A, G (in TGA) pairs with C, A (in CAG) pairs with T, C (in CAG) pairs with G, G (in CAG) pairs with C.
So the complementary sequence is TAC ACT GTC.

Answer:

A. TAC ACT GTC