Genes are units of heredity passed from parents to offspring.

DNA carries genetic information in living organisms.

Humans have about 20,000 to 25,000 genes.

Chromosomes are structures that hold DNA inside cells.

Each parent contributes half of the child’s genes.

Mutations are changes in DNA that can cause variations.

Dominant genes overpower recessive genes in traits.

Genetics helps explain inherited traits like eye color.

Gregor Mendel is known as the father of genetics.

Genetics is used in medicine, agriculture, and forensics.