Question

Write about sporic meiosis?

Answer 1

Meiosis is the type of cell division by which it can produce four daughter cells with each having half the number of chromosomes. This kind of cell division happens in the plants, sperm and egg cells. Based on the basis of time, it is classified into three types. One of them includes sporic meiosis. Here, we are going to see about the sporic meiosis, its types, and functions.

Complete answer:
Sporic meiosis is a meiosis that takes place between fertilization and formation of gametes. This is involved in the production of spores. This takes place mostly in the plants. These have haplontic life cycles. The plant’s life cycle is diplohaplontic. They mostly take place in the zygote of the lower plants and form the haploid organisms. These also occur in the life-cycle of the ferns and mosses.

Firstly, after the process of fertilization the zygote is developed. Then, the sporophyte is developed and diploid generation occurs. This sporophyte is then developed into sporangia.
During the meiosis division the spore(n) is developed and this leads to the haploid generation.
After this the gametangia is developed so that it is developed into two gametes and again the process continues by the process of fertilization. So, this is the process of sporic meiosis cell division.

Note: Sporic meiosis is the process by which spores are developed so that the unicellular protists are generated. In this sporophyte, the spore undergoes mitosis to form gametophyte. This gametophyte makes gametes in mitosis. There are alternating 1n and 2n generations involved here. This is sporic meiosis.