Question

1. what are the components of dna? (what makes it up?) read the article from khan academy and highlight inform

Explanation:

DNA (deoxyribonucleic acid) is made up of three main components: 1. Nucleotides: The basic building blocks. Each nucleotide consists of: - A deoxyribose sugar (a 5 - carbon sugar molecule). - A phosphate group (which is involved in forming the sugar - phosphate backbone of the DNA strand). - A nitrogenous base: There are four types of nitrogenous bases in DNA: adenine (A), thymine (T), cytosine (C), and guanine (G). The nucleotides are linked together through phosphodiester bonds between the 3' carbon of one deoxyribose sugar and the 5' carbon of the next, forming the sugar - phosphate backbone. The nitrogenous bases project from this backbone and pair with complementary bases on the opposite strand (A with T, and C with G) via hydrogen bonds, which is crucial for the double - helix structure of DNA.

Answer:

The components of DNA are nucleotides. Each nucleotide is composed of a deoxyribose sugar, a phosphate group, and a nitrogenous base (adenine, thymine, cytosine, or guanine). The nucleotides are linked to form a sugar - phosphate backbone, and the nitrogenous bases pair (A - T, C - G) to give DNA its double - helix structure.