Where does meiosis occur specifically in plants and animals?

Plant and animal meiosis occurs in the gametes, the sex cells that develop from the eggs in the ovaries or the developing testicles of males. In humans, meiosis occurs in the ovaries. In plants, meiosis occurs in the male and female sex organs. A female plant has two ovaries, each containing thousands of eggs. These eggs are a product of a second meiotic division that began during the first meiotic division in the ovule.

Where do meiosis occur in plants?

In most plants, meiosis occurs in the egg cell. In plants that have separate sexes, the male (microscopic pollen grains) and female (ovules) gametes each undergo meiosis in their respective cells. The resulting new cells are the haploid products of meiosis. In the case of plants, these haploid cells are the sperm and egg, which fuse to form a single new cell, the embryo, which is the first plant cell to develop a nucleus.

Where does meiosis occur in humans?

During the first stage of meiosis, the first division method, the two paired homologous chromosomes separate and move to opposite ends of the cell. Before they separate, the chromosomes specialize into two types: the chromosome that contains the DNA that determines an organism’s sex (the sex chromosome) and the other chromosome that contains the rest of the genetic information. The two daughter cells each receive one of these chromosomes.

Where does meiosis occur in animals?

In animals, meiosis occurs in the germline. In humans, this is the sex cell line. Humans have two copies of each chromosome, one from each parent, so when two germ cells couple together, they each contribute one copy to form a new egg or sperm. The egg and sperm each contain half the number of DNA, so the new human is half the genetic makeup of each parent.

Where does meiosis occur in fungi?

In fungi, meiosis is also predominantly restricted to the sexual stage of the life cycle. Most fungi reproduce asexually by forming small, asexual spores called conidia. These spores are haploid and do not undergo meiosis. Fungal species that reproduce sexually have either one or two mating types. This means that fungi can have one or two different mating types, each of which determines the sexual compatibility of different mating types. Only sexually reproductive fungi undergo meiosis.