Question

What 3 things makes up DNA?

Answer 1

DNA Structure:

1. It is a nucleic acid, and all nucleic acids are also made up of nucleotides.
2. The DNA molecule is also composed of units called nucleotides, and each nucleotide is composed of 3 different components such as sugar, phosphate groups, and nitrogen bases.
3. The basic building blocks of the DNA are nucleotides, which are composed of a sugar group, a phosphate group, and also a nitrogen base.
4. The sugar & phosphate groups link nucleotides together to form each strand of the DNA.
5. Adenine (A), Thymine (T), Guanine (G), and Cytosine (C) are four types of nitrogen bases.
6. These 4 Nitrogenous bases generally pair together in the following way: Adenine with Thymine and Cytosine with Guanine. These base pairs are very much essential for DNA’s double helix structure, which resembles a twisted ladder.
7. The 2 strands of the DNA run in opposite directions to each other.
8. These strands are also held together by a hydrogen bond which is present between the 2 complementary bases.
9. The strands are also helically twisted, where each strand forms a right-handed coil, and 10 nucleotides make up a single turn.