• Organisms reproduce, which means they make copies of themselves

• That means cells themselves have to reproduce

• How do you think that happens?

Think-Pair-Share

Chromosome - a tightly-packed molecule that contains all, or part, of an organism's DNA

• Every organism has a certain number of chromosomes in their cells

• Different chromosomes have a different percent of DNA

Chromosomes

• Most human cells have 23 pairs of chromosomes

• That's 46 chromosomes in total!

Human Chromosomes

Cell Division - the process of cell reproduction

• One cell creates daughter cells that have the genetic information of the parent cell

• There are two types of cell division:

  • Mitosis

  • Meiosis

Cell Division

Mitosis and Meiosis: The Basics