In contrast to a mitotic division, which yields two identical diploid daughter cells, the end result of meiosis is haploid daughter cells with chromosomal combinations different from those originally present in the parent. In sperm cells, four haploid gametes are produced.
What are the cells called at the end of meiosis?
Finally, during telophase II, the chromosomes are enclosed in nuclear membranes. Cytokinesis follows, dividing the cytoplasm of the two cells. At the conclusion of meiosis, there are four haploid daughter cells that go on to develop into either sperm or egg cells.
Are the cells the same at the end of meiosis?
Each cell is identical as far as the number of chromosomes is concerned. However, the genetic constitution of the chromosomes in each cell is not identical with any of the other cells produced at the end of meiosis, because of crossing over and random orientation of bivalents at metaphase-I stage.
Why is meiosis is considered a reductive division?
Meiosis 1 is considered a reductive division because the chromosome number begins as diploid (2 of each chromosome type) and at the end of meiosis 1 the chromosome number is haploid (1 of each chromosome type). The chromosome number is reduced. State that cells are haploid at the end of meiosis I.
Where does mitosis occur in the body?
Cell division by mitosis occurs in all human body cells except the gonads (sex cells). During mitosis, the DNA is exactly copied and a new daughter cell created with the same number of chromosomes as the parent cell, ie 46.
What type of cells are made in mitosis?
Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells.
Are the daughter cells identical in meiosis?
Like mitosis, meiosis is a form of eukaryotic cell division. … Mitosis creates two identical daughter cells that each contain the same number of chromosomes as their parent cell. In contrast, meiosis gives rise to four unique daughter cells, each of which has half the number of chromosomes as the parent cell.
Which correctly describes crossing over?
Crossing over is the process whereby homologous chromosomes are pulled to opposite poles of the cell.