Question

If the sequence of the 5'-3' strand is AATGCTAC, then the complementary sequence has the following sequence: a. 3'-AATGCTAC-5' b. 3'-CATCGTAA-5' c. 3'-TTACGATG-5' d. 3'-GTAGCATT-5'

Short answer

Option c is correct.

Step-by-step solution

Step 1. Introduction

There are two types of nitrogenous bases in a nucleic acid that is pyrimidines and purines. Adenine is complementary to thymine and Guanine is complementary to cytosine.

Step 2. Explanation of the correct option

Option c is correct because complementary of 5'-AATGCTAC-3' is 3′-TTACGATG-5′

Step 3. Explanation of the incorrect options

Option a is incorrect because complementary of 5'-AATGCTAC-3' is 3′-TTACGATG-5′

Option b is incorrect because complementary of 5'-AATGCTAC-3' is 3′-TTACGATG-5′

Option d is incorrect because complementary of 5'-AATGCTAC-3' is 3′-TTACGATG-5′