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Answer:
The unique things happen in meiosis are there is no DNA replication, the time taken for completion is longer. This is reductional division having two divisions i.e. meiosis-1 and meiosis-2. The meiosis-2 division is similar to the mitotic cell division.
Explanation:
The meiotic cell division is reductional while the mitosis is equational division. The meiotic cell division occurs in germ cells while the mitotic cell division has seen in body cells. The meiosis has certain peculiarities that are not found in mitotic cell division.
The meiotic cell division takes longer time than the mitosis. It can be taken years to complete. Mitotic cell division takes one or two and a half hours to complete.
There is no DNA replication in both the meiotic cell division as it reduces the number of chromosomes. In mitosis during the cell cycle DNA replication occurs.
In meiosis, the exchange of genetic materials occurs between the homologous chromosomes takes place in prophase-1 of the meiosis. The prophase-1 is the longest stage and have 5 substages.
Another peculiarity in meiosis is the daughter cells formed during telophase-1 of the first division, directly enters into the metaphase-2 of second meiotic division.
The second division of meiosis-2 is similar to the mitotic cell division. The only difference is mitosis produces 2n cells as output while the end of the second meiotic division results in 'n' number of cells.
Mitosis and meiosis are the types of cell division. In meiosis, the replication of the DNA does not occur and is a long process. Meiosis II is similar to the mitosis.
What are mitosis and meiosis?
Mitosis is the cell division in which the cell is divided into the same chromosome number and two daughter cells. Meiosis is a reduction division in which the chromosome number gets halved and produces four daughter cells.
Mitosis occurs in the body cells and meiosis occurs in the germinal cells of the body. Mitosis completes in a short time while meiosis takes a longer time.
In the mitotic cell division, the DNA of the cell replicates while in the meiotic division only the chromosomal number gets halved.
Meiosis has two-step I and II that includes the longest prophase I and the other subphases of the division.
Meiosis II is similar to that of the mitotic division as the subphases of both division are similar but only differs in the haploidy and the diploidy of the daughter cells produced.
Therefore, prophase I of meiosis I is unique and meiosis II is similar to mitosis.
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