All Definitions for the Course

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Department
Molecular Biology and Genetics
Course
MBG 1000
Professor
Georgevander Merwe
Semester
Winter

Description
Definitions for MGB1000Lecture1MitosisdivisionofsomaticcellsSomaticcellanonsexcellwith23pairsofchromosomesinhumansApoptosisaformofcelldeaththatisanormalpartofgrowthanddevelopmentNecrosisthedeathofmostorallcellsinanorganortissueCytokinesisdivisionofthecytoplasmanditscontentsKaryotypeasizeorderchromosomechartLecture2GameteasexcellZygoteaprenatalhumanfromthefertilizedovumstageuntilformationoftheembryoOvarythefemalegonadsTestisthemalegonadsMeiosiscelldivisionthathalvesthenumberofchromosomestoformhaploidgametesSpermatogenesisspermcelldifferentiationOogenesisoocytedevelopmentHaploidacellwithonesetofchromosomesLecture4BlastocystAthinwalledhollowstructureinearlyembryonicdevelopmentthatcontainsaclusterofcellscalledtheinnercellmassfromwhichtheembryoarisesTheouterlayerofcellsgivesrisetotheplacentaandothersupportingtissuesneededforfetaldevelopmentwithintheuteruswhiletheinnercellmasscellsgivesrisetothetissuesofthebodyDizygoticTwinsthatoriginateastwofertilizedovafraternaltwinsMonozygoticTwinsthatoriginateasasinglefertilizedovumidenticaltwinsTeratogenAsubstancethatcausesabirthdefectLecture5PleiotropicAsinglegenedisorderwithseveralsymptomsDifferentsymptomsubsetsmayoccurindifferentindividualsSpontaneousabortionanaturallossoftheproductofconceptionStillbirthAfetaldeathafter20weeksofpregnancydiesintheuterusLecture7EuploidAsomaticcellwiththenormalnumberofchromosomesforthespeciesTriploidcontainsthreehomologoussetsofchromosomesAneuploidAcellwithoneormoremissingorextrachromosomesTrisomyAhumancellwith47chromosomesoneextraMonosomyAhumancellwith45chromosomesonemissingLecture8DuplicationAnextracopyofaDNAsequenceusuallycausedbymisalignedpairinginmeiosis
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