Definition
Meiosis is a special type of cell division of germ cells in sexually-reproducing organisms that produces the gametes, the sperm or egg cells. It involves two rounds of division that ultimately result in four cells, each with only one copy of each chromosome (haploid). Additionally, prior to the division, genetic material from the paternal and maternal copies of each chromosome is crossed over, creating new combinations of code on each chromosome. Later on, during fertilisation, the haploid cells produced by meiosis from a male and a female will fuse to create a zygote, a cell with two copies of each chromosome.
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kinaseCyclin-dependent kinase 1Cyclin-dependent kinase 10Cyclin-dependent kinase 2Cyclin-dependent kinase 3Cyclin-dependent kinase 4Cyclin-dependent kinase 5Cyclin-dependent kinase 6Cyclin-dependent kinase 7Cyclin-dependent kinase 8Cyclin-dependent kinase 9Cyclin-dependent kinase inhibitor 1CCyclin-dependent kinase inhibitor proteinCyclin ACyclin A1Cyclin A2Cyclin BCyclin B1Cyclin B2Cyclin DCyclin D1Cyclin D2Cyclin D3Cyclin ECyclin E1Cyclin E2CytogeneticsCytokinesisDMC1 (gene)DNADNA damage (naturally occurring)DNA repairDNA replicationDevelopmental disabilitiesDicentric chromosomeDictyateDictyoteneDikaryonDinokaryonDioecyDiploidDouble-strand breaksDown syndromeDrosophila melanogasterE2FEdouard Van BenedenEdwards syndromeEffects of hormones on sexual motivationEgg (biology)Egg cellEgg cellsEuchromatinEukaryoteEvolution of sexual reproductionExternal fertilizationExtrachromosomal DNAExtrusionFemaleFeminization (biology)FertilisationFertilityFertilizationFollicle-stimulating hormoneFollicular atresiaFolliculogenesisFungiFungusG0 phaseG1 phaseG2 phaseGameteGametesGametogenesisGametophyteGene conversionGenetic informationGenetic recombinationGenetic variationGenomeGerm cellGerm cellsGermlineGestationGiardia duodenalisGonochorismHaplodiploidyHaploidHermaphroditeHeterochromatinHistoneHistone H1Histone H2AHistone H2BHistone H3Histone H4Holocentric chromosomeHomologous chromosomeHomologous chromosomesHomologous recombinationHomologsHorizontal gene transferHuman reproductionHuman sexual activityHuman sexualityHydrogen peroxideINK4Independent assortmentInterkinesisInternal fertilizationInternational System for Human Cytogenomic NomenclatureInterphaseIntersexIntersex (biology)IsochromosomeIsogamyJacobs syndromeJohn Bretland FarmerJohn Edmund Sharrock MooreKaryotypeKinetochoreKlinefelter syndromeLampbrush chromosomeLaw of Independent AssortmentLeishmaniaLeptotene stageLinear chromosomeList of organisms by chromosome countList of sequenced eukaryotic genomesLordosis behaviorMRNAMaleMatingMating in fungiMating of yeastMaturation promoting factorMechanics of human sexualityMeiosis (figure of speech)Meiosis IMeiosis IIMenstrual cycleMetaphaseMetaphase plateMicrochromosomeMicrotubulesMiosisMiscarriageMitosisMitotic recombinationMonocentricMonosomyMulticellular organismMyiasisMyositisNatural selectionNondisjunctionNuclear envelopeNuclear envelopesNuclear membraneNuclear organizationNucleoliNucleolusNucleosomeOocyteOogenesisOscar HertwigOvarian follicleOvumOxford English DictionaryOxidative stressOxymonadP14arfP16P21P53P53 p63 p73 familyP73PFTK1PachytenePaleopolyploidyParabasalidParasexual cycleParthenogenesisPatau syndromePelvic thrustPenile–vaginal intercoursePlantPlant reproductionPlant reproductive morphologyPlasmidPloidyPolar bodiesPollenPolycentric chromosomePolyploidizationPolyploidyPolytene chromosomePostreplication checkpointPreprophasePrometaphaseProphaseProtamineProteinProtistProtozoaRAD51Reproductive systemRestriction pointRomanization of GreekS phaseSatellite chromosomeSchizosaccharomyces pombeSea urchinSeminiferous tubuleSequential hermaphroditismSexSex-determination systemSex as a biological variableSex chromosomeSex organSexual differentiationSexual differentiation in humansSexual dimorphismSexual intercourseSexual reproductionSexual reproduction in animalsSexual selectionSexual systemSimultaneous hermaphroditismSister chromatidSister chromatidsSmall supernumerary marker chromosomeSomatic cellSpermSpermatocyteSpermatogenesisSpermatozoaSpermatozoonSpindle apparatusSpindle checkpointSpindle fibersSpindle polesSpo11SporeSporesSporophyteSubmetacentricSynapsisSynaptonemal complexSynizesis (biology)TINF2TP63TelocentricTelomereTelomere-binding proteinTelophaseTemperature-dependent sex determinationTesticleTestis-determining factorThomas Hunt MorganTranscription (genetics)Triple X syndromeTrisomyTurner syndromeUnited StatesVirilizationVolvox carteriWalther FlemmingWee1XO sex-determination systemXY sex-determination systemZO sex-determination systemZW sex-determination systemZygoteZygotene
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