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2. Leptotene stage - Wikipedia

   en.wikipedia.org/wiki/Leptotene_stage

   Studies in male mouse meiosis have shown that after DNA damaging treatments like gamma irradiation, two types of repair responses occur depending on the meiotic stage: [5] From leptotene to early pachytene, exogenous DNA damage triggers widespread presence of the repair protein gammaH2AX in the nucleus, associated with homologous recombination ...

3. Meiosis - Wikipedia

   en.wikipedia.org/wiki/Meiosis

   This is an accepted version of this page This is the latest accepted revision, reviewed on 5 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 ...

4. Chromosomal crossover - Wikipedia

   en.wikipedia.org/wiki/Chromosomal_crossover

   The first theory rests upon the idea that meiosis evolved as another method of DNA repair, and thus crossing-over is a novel way to replace possibly damaged sections of DNA. [9] The second theory comes from the idea that meiosis evolved from bacterial transformation , with the function of propagating diversity.

5. Nondisjunction - Wikipedia

   en.wikipedia.org/wiki/Nondisjunction

   In general, nondisjunction can occur in any form of cell division that involves ordered distribution of chromosomal material. Higher animals have three distinct forms of such cell divisions: Meiosis I and meiosis II are specialized forms of cell division occurring during generation of gametes (eggs and sperm) for sexual reproduction, mitosis is the form of cell division used by all other cells ...

6. Origin and function of meiosis - Wikipedia

   en.wikipedia.org/wiki/Origin_and_function_of_meiosis

   Meiosis generates genetic variation in the diploid cell, in part by the exchange of genetic information between the pairs of chromosomes after they align (recombination). Thus, on this view, [28] an advantage of meiosis is that it facilitates the generation of genomic diversity among progeny, allowing adaptation to adverse changes in the ...

7. File:Meiosis Stages.svg - Wikipedia

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

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