Which of the following sequence pairs with TCAGAT

This question lacks options, however, it can be answered. The answer is AGTCTA

Explanation:

DNA molecule is a polymer made up of nucleotide subunits. In the DNA molecule, there are four types of nucleotides namely: Adenine (A), Guanine (G), Cytosine (C), and Thymine (T). These nucleotides pair with one another using complementary base pairing to form the double strand of DNA.

The complementary base pairing states that an Adenine base will always hydrogen pair with Thymine base while Guanine base will always hydrogen pair with Cytosine base i.e. A-T, G-C. Therefore, according to this question, which contains the following sequence: TCAGAT. The complementary sequence that will pair with it is as follows: AGTCTA.