Question

uracil is similar in structure to thymine but lacks a methyl group. in dna, uracil pairs with adenine using two hydrogen bonds. in rna, thymine pairs with adenine using two hydrogen bonds.
in the image below, thymine (t) in dna is replaced by uracil (u) in rna.
dna and rna sequences image
how many hydrogen bonds are formed between thymine and adenine in dna?
options: 5, 2, 1

Explanation:

In DNA, the base pair thymine (T) and adenine (A) form two hydrogen bonds. This is a fundamental concept in molecular biology (a subfield of Biology) related to DNA structure.

Answer:

2 (the option with "2")