Endless Facts, One Snippet at a Time
The Role of DNA in Reproduction
- DNA carries the genetic instructions that shape every cell and trait.
- Half comes from the mother’s egg, half from the father’s sperm.
- Genes determine everything from eye color to metabolism.
- Each person has about 20,000 genes arranged on 23 pairs of chromosomes.
- Mutations can create diversity — or lead to genetic disorders.
- DNA replication ensures accurate inheritance with every generation.
- During fertilization, random gene mixing creates one-of-a-kind individuals.
- Even identical twins have subtle DNA differences over time.
- Genetic testing can reveal ancestry and inherited traits.
- DNA is the language of life — passed from one generation to the next.