Unit 5 · Free note

Meiosis vs mitosis

Mitosis: one division, diploid → diploid copies for growth. Meiosis: two divisions, diploid → haploid gametes, variation.

• Meiosis I separates homologs (reductional). Crossing over is prophase I — not mitosis.
• Meiosis II separates sister chromatids (like mitosis).
• Variation: crossing over, independent assortment, random fertilization.

All guides