enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Meiosis - Wikipedia

    en.wikipedia.org/wiki/Meiosis

    This is an accepted version of this page This is the latest accepted revision, reviewed on 24 January 2025. Cell division producing haploid gametes For the figure of speech, see Meiosis (figure of speech). For the process whereby cell nuclei divide to produce two copies of themselves, see Mitosis. For excessive constriction of the pupils, see Miosis. For the parasitic infestation, see Myiasis ...

  3. Chromosomal crossover - Wikipedia

    en.wikipedia.org/wiki/Chromosomal_crossover

    Due to this genetic recombination, the offspring have a different set of alleles and genes than their parents do. In the diagram, genes B and b are crossed over with each other, making the resulting recombinants after meiosis Ab, AB, ab, and aB. Thomas Hunt Morgan's illustration of crossing over (1916) A double crossing over

  4. File:Meiosis Stages.svg - Wikipedia

    en.wikipedia.org/wiki/File:Meiosis_Stages.svg

    This image has been assessed under the valued image criteria and is considered the most valued image on Commons within the scope: Biology diagrams, Biology diagrams, and Meiosis. You can see its nomination here .

  5. Meiotic recombination checkpoint - Wikipedia

    en.wikipedia.org/wiki/Meiotic_recombination...

    Early in meiosis 1, Ime2 activity rises and is required for the normal accumulation and activity of Ndt80. However, if Ndt80 is expressed prematurely, it will initially accumulate in an unmodified form. Ime2 can then also act as a meiosis-specific kinase that phosphorylates Ndt80, resulting in fully activated Ndt80. [26]

  6. Cell division - Wikipedia

    en.wikipedia.org/wiki/Cell_division

    The cell cycle in eukaryotes: I = Interphase, M = Mitosis, G 0 = Gap 0, G 1 = Gap 1, G 2 = Gap 2, S = Synthesis, G 3 = Gap 3. Cell division is the process by which a parent cell divides into two daughter cells. [1] Cell division usually occurs as part of a larger cell cycle in which the cell grows and replicates its chromosome(s) before dividing.

  7. Sexual reproduction - Wikipedia

    en.wikipedia.org/wiki/Sexual_reproduction

    In the first stage of sexual reproduction, meiosis, the number of chromosomes is reduced from a diploid number (2n) to a haploid number (n). During fertilisation, haploid gametes come together to form a diploid zygote, and the original number of chromosomes is restored.

  8. Oogenesis - Wikipedia

    en.wikipedia.org/wiki/Oogenesis

    2.2.1 Meiosis I. 2.2.2 Meiosis II. ... Diagram showing the reduction in number of the chromosomes in the process of ... (simple tubular), connective with a functional ...

  9. Synaptonemal complex - Wikipedia

    en.wikipedia.org/wiki/Synaptonemal_complex

    The synaptonemal complex is a tripartite structure consisting of two parallel lateral regions and a central element. This "tripartite structure" is seen during the pachytene stage of the first meiotic prophase, both in males and in females during gametogenesis.