Meiosis occurs in microspores mother cells which are diploid cells; to produce microspores or pollen grains. Each microspore mother cell produces four microspores after a meiotic division.
Where in the body does meiosis take place?
Meiosis takes place in the reproductive organs of the organism. For females, meiosis takes place in the ovaries, where the eggs are produced and…
In which type of cells meiosis takes place?
Meiosis takes place in diploid cells. Meiosis is important because it ensures that all organisms produced via sexual reproduction contain the correct number of chromosomes. Meiosis also produces genetic variation by way of the process of recombination.
In which of the following does meiosis takes place during Microsporangium?
Complete answer: During microsporogenesis, meiosis occurs in microspore mother cells. When the anther is young, a group of compactly arranged homogenous cells occupies the centre of each microsporangium. These centrally placed cells within the microsporangium form the ‘sporogenous tissue’.
What is the importance meiosis?
Meiosis is important because it ensures that all organisms produced via sexual reproduction contain the correct number of chromosomes. Meiosis also produces genetic variation by way of the process of recombination.
Does meiosis occur in bacteria?
Meiosis does not occur in archaea or bacteria, which reproduce via asexual processes such as mitosis or binary fission. … Because the chromosomes of each parent undergo genetic recombination during meiosis, each gamete, and thus each zygote, will have a unique genetic blueprint encoded in its DNA.
Where does meiosis occur in animals?
Comparison to mitosis
|Where does it happen?||Almost all eukaryotes (animals, plants, fungi, and protists); In gonads, before gametes (in diplontic life cycles); After zygotes (in haplontic); Before spores (in haplodiplontic)||All proliferating cells in all eukaryotes|
What is meiosis in Microsporogenesis?
Microsporogenesis or male meiosis is the earliest step in pollen ontogeny. It consists of nuclear divisions associated with cytoplasmic divisions or cytokinesis. This process starts with microsporocytes or pollen mother cells enclosed in a callose envelope within which meiosis takes place.