
The term mitosis and meiosis are coined respectively by ________________ and __________.
Answer
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Hint: Meiosis is a special type of cell division of germ cells in sexually reproducing organisms used to produce gametes, such as sperm or egg cells. In cell biology, mitosis is a part of the cell cycle in which replicated chromosomes are divided into two new nuclei.
Complete answer:
In general, mitosis (nucleus division) is preceded by the interphase S stage (during which the DNA is replicated) and is often followed by telophase and cytokinesis, which divides the cytoplasm, organelles and cell membrane of one cell into two new cells containing approximately equal parts of these cellular components. The different stages of Mitosis define the mitotic phase (M) of an animal cell cycle—the division of the mother cell into two daughter cells genetically identical to each other.
Meiosis is a special type of cell division of germ cells in sexually reproducing organisms used to produce gametes, such as sperm or egg cells. It involves two divisions which ultimately result in four cells with only one copy of each paternal and maternal chromosome (haploid).In addition, prior to division, the genetic material from the paternal and maternal copies of each chromosome is crossed, creating new code combinations for each chromosome.
The terms Mitosis and Meiosis are coined by Fleming and Farmer and Moore, respectively. Mitosis was first observed in Strasburger (1875) and W.fleming (1879) in animal cells, while Fleming was given the term mitosis (1882). Meiosis was first shown by Van Benden (1883), but was described by Winiwarter (1900). The term "meiosis" was given to Farmer and Moore (1905).
Note:
Mitosis consists of one stage, while meiosis consists of two stages. Mitosis produces diploid cells (46 chromosomes) while meiosis produces haploid cells (23 chromosomes). Mitosis produces two identical daughter cells, while meiosis produces four genetically different daughter cells.
Complete answer:
In general, mitosis (nucleus division) is preceded by the interphase S stage (during which the DNA is replicated) and is often followed by telophase and cytokinesis, which divides the cytoplasm, organelles and cell membrane of one cell into two new cells containing approximately equal parts of these cellular components. The different stages of Mitosis define the mitotic phase (M) of an animal cell cycle—the division of the mother cell into two daughter cells genetically identical to each other.
Meiosis is a special type of cell division of germ cells in sexually reproducing organisms used to produce gametes, such as sperm or egg cells. It involves two divisions which ultimately result in four cells with only one copy of each paternal and maternal chromosome (haploid).In addition, prior to division, the genetic material from the paternal and maternal copies of each chromosome is crossed, creating new code combinations for each chromosome.
The terms Mitosis and Meiosis are coined by Fleming and Farmer and Moore, respectively. Mitosis was first observed in Strasburger (1875) and W.fleming (1879) in animal cells, while Fleming was given the term mitosis (1882). Meiosis was first shown by Van Benden (1883), but was described by Winiwarter (1900). The term "meiosis" was given to Farmer and Moore (1905).
Note:
Mitosis consists of one stage, while meiosis consists of two stages. Mitosis produces diploid cells (46 chromosomes) while meiosis produces haploid cells (23 chromosomes). Mitosis produces two identical daughter cells, while meiosis produces four genetically different daughter cells.
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