At the beginning of meiosis, a cell with 46 chromosomes would undergo DNA replication to end up with 92 chromatids. During anaphase 2 of meiosis, these chromatids would separate, resulting in daughter cells with 46 chromosomes each, the same as the original cell before replication.
There are many differences between meiosis and mitosis, and it can all be summed up by understanding they have different functions in life processes. Mitosis is all about creating cells that are identical to each other asexually. This provides multi-cellularity in multicellular beings. Meiosis, on the other hand, is all about the production of gametes (sex cells) from a single germ cell in order to make sexual reproduction possible. Taking all of this into considering, Mitosis is seen as being a part of a cyclical cell life cycle, so it happens more than once. Meiosis is a process that happens only once for a germ cell largely because it is a process that creates haploid cells from diploid cells. Note that because of these differences Mitosis requires the replication of DNA to occur in order for diploid cells to create more diploid cells. Diploid meaning that a full set of chromosomes are present; human diploid cells would have 46 chromosomes, 23 from the mother and 23 from the father that are paired up with each other. Haploid, would mean 23 human chromosomes in total; with regards to Meiosis, the chromosomes would be a combination of the genes that an individual inherited from his or her parents. In Meiosis, which is divided into two parts, replication of DNA occurs before Meiosis I is carried out, but no replication occurs before proceeding to Meiosis II in order to achieve creating haploid cells.
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After meiosis is complete, each resulting cell typically contains half the number of chromosomes as the original cell. This means that in humans, each cell after meiosis would have 23 chromosomes, as opposed to the usual 46 chromosomes in a somatic cell.
A gamete has half the number of chromosomes of the somatic (diploid) cell. Therefore a zebra gamete would have 25 chromosomes if 50 is the diploid number.
At the beginning of meiosis, a cell with 46 chromosomes would undergo DNA replication to end up with 92 chromatids. During anaphase 2 of meiosis, these chromatids would separate, resulting in daughter cells with 46 chromosomes each, the same as the original cell before replication.
A diploid organism have: 2n chromosome after meiosis 1, the gametes would still have 2n as DNA replication occured Meiosis 1 can be assumed to be the same process as Mitosis. after meiosis 2, the gametes would have n (1/2 of 2n), as the second meiosis would not include any form of DNA replication.
Meiosis is known as a reduction division. The total number of chromosomes present prior to meiosis is reduced in half at the end of meiosis. In this case 12 pairs of chromosomes before meiosis (a total of 24 chromosomes) becomes 12 chromosomes (one of each pair) at the end of meiosis.
Twice the amount
There are many differences between meiosis and mitosis, and it can all be summed up by understanding they have different functions in life processes. Mitosis is all about creating cells that are identical to each other asexually. This provides multi-cellularity in multicellular beings. Meiosis, on the other hand, is all about the production of gametes (sex cells) from a single germ cell in order to make sexual reproduction possible. Taking all of this into considering, Mitosis is seen as being a part of a cyclical cell life cycle, so it happens more than once. Meiosis is a process that happens only once for a germ cell largely because it is a process that creates haploid cells from diploid cells. Note that because of these differences Mitosis requires the replication of DNA to occur in order for diploid cells to create more diploid cells. Diploid meaning that a full set of chromosomes are present; human diploid cells would have 46 chromosomes, 23 from the mother and 23 from the father that are paired up with each other. Haploid, would mean 23 human chromosomes in total; with regards to Meiosis, the chromosomes would be a combination of the genes that an individual inherited from his or her parents. In Meiosis, which is divided into two parts, replication of DNA occurs before Meiosis I is carried out, but no replication occurs before proceeding to Meiosis II in order to achieve creating haploid cells.
Even if there was that kind of sex cell, I don't think it would survive! Sex cells ALWAYS have 46 chromosomes. At the end of meiosis, as long as there are no mistakes, each sperm or egg cell would have 23 chromosomes.
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If the body cells have 10 chromosomes, the sex cells produced during meiosis would have 5 chromosomes. This is because meiosis involves two rounds of cell division, resulting in cells with half the number of chromosomes as the original body cells.
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After meiosis is complete, each resulting cell typically contains half the number of chromosomes as the original cell. This means that in humans, each cell after meiosis would have 23 chromosomes, as opposed to the usual 46 chromosomes in a somatic cell.
During meiosis, the chromosome number decreases by half. For example, if a human cell with 46 chromosomes were to undergo meiosis, the result would be four daughter cells with 23 chromosomes in each.
A gamete has half the number of chromosomes of the somatic (diploid) cell. Therefore a zebra gamete would have 25 chromosomes if 50 is the diploid number.