Where does meiosis occur in animal systems?
In most mammals, meiosis occurs in the ovaries and sperm are produced in the testes. In the rare instance when meiosis does occur in the testes, the resulting sperm are infertile.
Where does meiosis occur in plant systems?
Plant meiosis is similar to animal meiosis in that it is a process of cell division in which the chromosomes of a cell are replicated, then divide into two daughter cells. In plants, meiosis occurs in the male and female germ cells. In the male, meiosis produces sperm, whereas in the female, meiosis produces egg cells. Since most plants are hermaphrodites and need both male and female reproduction, the meiosis of each sex is usually similar.
Where does meiosis occur in animals?
The answer is simpler in plants and fungi, where meiosis occurs in the plant or fungus itself. As for animals, the location of meiosis varies. If a species is bisexual, the male and female germ cells will develop in the same place in the gonads, which are typically the testes or ovaries. In species where the sex of the offspring can be determined genetically, the sex cells can develop before fertilization in a specialized region of the gonads called the germinal ridge.
Where does meiosis occur in humans?
A similar process occurs in humans. In humans, the two meiotic divisions take place in the womb. During the first meiosis, the chromosomes line up and undergo recombination. This results in a half-reduction in the number of chromosomes in each cell. In the second meiotic division, the chromosomes line up and undergo recombination. This results in the creation of two daughter cells that contain half the original number of chromosomes.
Where does meiosis occur in plants?
Plant cells usually contain two sets of chromosomes, one inherited from each parent, so that the total number of chromosomes does not change. When an egg cell is produced in a plant, a single nucleus with the two sets of chromosomes is formed. This nucleus divides, producing four nuclei each with one set of chromosomes. This process is meiosis. After one of the nuclei divides, the four nuclei fuse together to form the fertilized egg cell.