Cell Division: Mitosis & Meiosis

Subject: Science  ·  Grade level: 11th

How cells copy themselves — and how sex cells are made differently.

In this lesson

• Mitosis: identical copies
• Meiosis: shuffled and halved
• Why it matters

Key terms

Chromosome

A condensed package of DNA.

Sister chromatids

Two identical copies of a chromosome joined at the centromere.

Spindle

Protein fibers that pull chromatids apart.

Cell Division: Mitosis & Meiosis lesson on BrightPath

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