Biology, asked by priyanka866, 10 months ago

Difference between somatogamy and karyogamy.​

Answers

Answered by HayDoc1025
3

Plasmogamy vs Karyogamy

The fusion of two gametes during sexual reproduction is known as syngamy. Syngamy occurs via two stages named plasmogamy and karyogamy. Plasmogamy is the first stage of syngamy. It is the fusion of the cytoplasm of two gametes or two mating cells without the fusion of their nuclei. Plasmogamy brings the male and female nuclei together. When plasmogamy occurs, it produces a cell which contains two nuclei inherited from each parent and the cell is known as a dikaryotic cell. After the fusion of cytoplasm, two nuclei come closer and fuse with each other. This stage is known as karyogamy. This is the difference between plasmogamy and karyogamy. Once karyogamy occurs, it yields a diploid cell called zygote. The zygote can divide by meiosis to produce spores or it can divide by mitosis to produce a new individual. In some organisms, karyogamy occurs immediately after the plasmogamy as in lower fungi. In some species, dikaryon phase exists for several generations.

Answered by lubabasajid1055
2

Answer:

Explanation:

When male and female gamete unites, zygote is formed.This process is called as fertilization or syngamy.

  Somatogamy:

Somatogamy is the 1st step of the syngamy or fertilization.

It is defined as:

               "The fusion of two cells probably their cytoplasm

                 but not including their nuclei in fusion is called as

                somatogamy"

It is also called as plasmogamy

Karyogamy:

This is the ultimate step of the karyogamy.

It is defined as:

      "The fusion of nuclei of two cells after the fusion of

        their cytoplasm is called as karyogamy"

Karyogamy occurs after plasmogamy.

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