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Human Life Cycle

Human Life Cycle. Multicellular diploid organism (2n). mitosis. meiosis. Unicellular diploid zygote (2n). Unicellular haploid cells (gametes) (n). fertilization. Meiosis – splitting chromosome pairs – 2n  n Mitosis – making exact copy. Protists / fungi / plants.

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Human Life Cycle

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  1. Human Life Cycle Multicellular diploid organism(2n) mitosis meiosis Unicellulardiploid zygote(2n) Unicellular haploid cells(gametes)(n) fertilization Meiosis – splitting chromosome pairs – 2n  nMitosis – making exact copy

  2. Protists / fungi / plants Multicellular diploid organism(2n) sporophyte mitosis meiosis Unicellular diploid zygote(2n) Unicellular haploid cells(n) (spores) fertilization Unicellularhaploid gametes(n) mitosis Multicellularhaploid organism(n) gametophyte mitosis

  3. Human life cycle Multicellular diploid organism(2n) mitosis meiosis Unicellulardiploid zygote(2n) Unicellular haploid cells(gametes)(n) fertilization

  4. Protists / fungi / plants Multicellular diploid organism(2n) mitosis meiosis Unicellular diploid zygote(2n) Unicellular haploid cells(n) (spores) fertilization Unicellularhaploid gametes(n) mitosis Multicellularhaploid organism(n) mitosis

  5. Moss(nonvascular plants) sporophyte gametophyte gametophyte dominates

  6. Ferns(seedless vascular plants) sporophyte sporophyte dominates

  7. Pine treeGymnosperms tiny gametophyte inside cone sporophyte sporophyte dominates

  8. SunflowerAngiosperms tiny gametophyte inside bottom of flower rest of plant = sporophyte sporophyte dominates

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