WebNov 25, 2024 · In animals, meiosis produces sperm and egg, but in plants, meiosis occurs to produce the gametophyte. The gametophyte is already haploid, so it produces sperm and egg by mitosis. The gametes merge, producing cells called zygotes that contain the same number of chromosomes as the parent plant — that is, the zygotes are diploid.

How some animals have ‘virgin births’: Parthenogenesis explained

WebAug 25, 2024 · The process, called parthenogenesis, allows creatures from honey bees to rattlesnakes to have so-called “virgin births.”. Such events can shock those who care for the animals. Examples include ... WebApr 8, 2024 · Initially, taking as example a 2n somatic cell, ploidy increases to 4n (duplication of DNA) during interphase. During meiosis I, since homologous chromosomes are separated, ploidy falls to 2n (the original number) and then during meiosis II ploidy finally falls to n in the resulting daughter cells. Ploidy reduction does not occur in mitosis. papps cancer colon

Does meiosis occur both in plant and animal cells? - Quora

WebMeiosis in animals produce the gametes (sperms and eggs), whereas meiosis in plants produce spores. These spores develop into haploid gametophytes, which in turn form … WebApr 11, 2024 · Definition. …. Meiosis is a type of cell division in sexually reproducing organisms that reduces the number of chromosomes in gametes (the sex cells, or egg and sperm). In humans, body (or somatic) cells are diploid, containing two sets of chromosomes (one from each parent). To maintain this state, the egg and sperm that unite during ... WebMay 20, 2024 · Sexual reproduction occurs in both plants and animals. Among plants it is used most notably by flowering plants. The pollen grains of flowers contain the sperm. The vase-shaped female reproductive … おげんさんといっしょ 放送予定 2022