Question

term: dna
definition

illustration
use word in a sentence

Explanation:

DNA stands for deoxyribonucleic acid. It is a molecule that carries the genetic instructions used in the growth, development, functioning and reproduction of all known living organisms and many viruses. It consists of two polynucleotide chains coiled around each other to form a double - helix structure.

Answer:

Definition: A molecule carrying genetic instructions, consisting of two polynucleotide chains in a double - helix structure.
Illustration: (Can be a simple drawing of a double - helix structure)
Use word in a sentence: Scientists study DNA to understand how traits are passed from parents to offspring.