Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction.
These cells are our sex cells – sperm in males, eggs in females. During meiosis one cell? divides twice to form four daughter cells. These four daughter cells only have half the number of chromosomes? of the parent cell – they are haploid. Meiosis produces our sex cells or gametes? (eggs in females and sperm in males).Jul 21, 2021
Meiosis occurs in the testes and ovaries of males and females, respectively, in the primordial germ cells.
The heterologous sex chromosomes undergo equational division in meiosis I. They behave like mitotic chromosomes in that sister chromatids separate in anaphase, and the heterologous sex chromosomes do not separate from one another. By contrast, the autosomes appear to undergo reductional division in meiosis I [35].Feb 25, 2015
The ovariesThe ovaries are two oval-shaped organs that lie to the upper right and left of the uterus. They produce, store, and release eggs into the fallopian tubes in the process called ovulation (av-yoo-LAY-shun).
Second meiotic division in female egg do not get completed before the entry of sperm. Hence, second meiotic division takes place after ovulation, inside fallopian tube.Jul 26, 2017
Both males and females use meiosis to produce their gametes, although there are some key differences between the sexes at certain stages. In females, the process of meiosis is called oogenesis, since it produces oocytes and ultimately yields mature ova(eggs).Mar 24, 2011
seminiferous tubulesMeiosis occurs in two different stages, meiosis 1 and meiosis 2. In human males, meiosis occurs in the seminiferous tubules of the testicles while in females, it occurs in cells called as oogonia. In males, meiosis occurs at puberty while in females it occurs right at birth.
Meiosis II In mammals, the number of viable gametes obtained from meiosis differs between males and females. In males, four haploid spermatids of similar size are produced from each spermatogonium. In females, however, the cytoplasmic divisions that occur during meiosis are very asymmetric.
In flowering plants, meiosis occurs in megaspore mother cells (megasporocytes) within the ovules of ovaries, and in microspore mother cells (microsporocytes) within the anthers of stamens.
So, the correct answer is 'Pairing of homologous chromosomes.