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A species of Equisetum has a diploid number of 22? how many chromosomes do you expect...

A species of Equisetum has a diploid number of 22? how many chromosomes do you expect in a spore? in a zygote? in a cell from the sporophyte? what would the pattern be if you were examining a liverwort?

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Answer #1

Equisetum is a pteridophyte. They undergo haplo-diplontic type of life cycle. As the Diploid set of chromosomes is 22.

Number of chromosomes in

  • Spores( haploid) - 11
  • Zygote (diploid) - 22
  • Cell of sporophyte (diploid) - 22

Liverwort is a Bryophyte and also undergo haplo-diplontic type of life cycle. The pattern would be same as that of Equisetum.

  • Spores - Haploid
  • Zygote - Diploid
  • Cells of Sporophyte - Diploid
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