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Zygote in mosses divides by mitosis and develops into a A     haploid,unicellular and parasitic sporophyteB     haploid,multicellular and dependent sporophyteC     diploid,multi-cellular spore-producing bodyD     diploid and,independent sporophyte.

Question

Zygote in mosses divides by mitosis and develops into a A     haploid,unicellular and parasitic sporophyteB     haploid,multicellular and dependent sporophyteC     diploid,multi-cellular spore-producing bodyD     diploid and,independent sporophyte.

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Solution

The zygote in mosses divides by mitosis and develops into a diploid, multi-cellular spore-producing body. So, the correct answer is C - diploid, multi-cellular spore-producing body.

Here's the step by step process:

  1. Mosses reproduce using spores, not seeds. The mature spores are haploid and are produced in a capsule at the end of a stalk.

  2. When conditions are right, the spores are released and can grow into a new moss plant if they land in a suitable location. This is the gametophyte stage and it is haploid.

  3. The gametophyte produces male and female gametes. When these gametes fuse during fertilization, they form a diploid zygote.

  4. The zygote undergoes mitosis (a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus) and develops into a multicellular, diploid sporophyte.

  5. The sporophyte remains attached to the gametophyte, from which it derives nutrients. It eventually produces a capsule, inside which meiosis occurs to produce haploid spores. The cycle then begins again.

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