Losomesoccurinthenucleusofeverylivingcell
ofaDNAmoleculecaledaroundhistoneproteins
consists
TherearevariousDNAsegmentsineachchromosomestrandknownasgenes eachgenecontrols a
particular
inheritedcharacteristic
Whenthe cell is notdividing
network
chromosomesappearas athreadlikenetwork chromatin
The
when acelldivides
chromatinnetworkcondenses thethreadsshortenandthicken
The theybecomevisibleassinglechromosomes
Beforea celldivides
Thegeneticmaterial inthenucleusmustbeduplicated
Replication processwhereDNAmakesanexact copyofitself
necessarytoensurethatbothdaughtercellsformedduringmitosishaveidenticalgeneticinformationto
theoriginalmothercell
afterreplication thesinglestrandedchromosomeconsistsoftwoidenticalunitsknownaschromatids
, Eachsomaticcellina particularorganismof aparticularspeciescontainsthesamenumberofchromosomes
ARAbodycells
inanorganismthatreproducessexually thenumberofchromosomesisalwaysanevennumberbecauseit
contains tests ofchromosomes thisisthediploid 2n chromosomenumber
Eachchromosomeinonesetnormallyhasa partnerintheotherset
chromosomesaresimilarinsizeshape geneticcomposition samecategoryof
Thesepartner genetic
characteristics
onechromosome ofthepaircomesfromthemother theotherfromthefather
ensuresthattheorganismhascharacteristicsofbothparents
Thesepairsofchromosomes areknownas homologouschromosomepairs
Thecompletediploidsetofchromosomesarranged accordingtotheirsize shapeandnumberin
homologouspairswithinasomaticcellof anorganism
Thehumankaryotype
consistsof
22pairsofautosomes ordinarychromosomes
1pairofganosomes sexchromosomesthatdeterminesex numb o 9 29Pm g s n lmepairs
is an
in ii ain
Biologicalfemales Biologicalmales
haveanoverall haveanoverall
chromosome
compositionof
comhptflhmf it
is a ani i
ofaDNAmoleculecaledaroundhistoneproteins
consists
TherearevariousDNAsegmentsineachchromosomestrandknownasgenes eachgenecontrols a
particular
inheritedcharacteristic
Whenthe cell is notdividing
network
chromosomesappearas athreadlikenetwork chromatin
The
when acelldivides
chromatinnetworkcondenses thethreadsshortenandthicken
The theybecomevisibleassinglechromosomes
Beforea celldivides
Thegeneticmaterial inthenucleusmustbeduplicated
Replication processwhereDNAmakesanexact copyofitself
necessarytoensurethatbothdaughtercellsformedduringmitosishaveidenticalgeneticinformationto
theoriginalmothercell
afterreplication thesinglestrandedchromosomeconsistsoftwoidenticalunitsknownaschromatids
, Eachsomaticcellina particularorganismof aparticularspeciescontainsthesamenumberofchromosomes
ARAbodycells
inanorganismthatreproducessexually thenumberofchromosomesisalwaysanevennumberbecauseit
contains tests ofchromosomes thisisthediploid 2n chromosomenumber
Eachchromosomeinonesetnormallyhasa partnerintheotherset
chromosomesaresimilarinsizeshape geneticcomposition samecategoryof
Thesepartner genetic
characteristics
onechromosome ofthepaircomesfromthemother theotherfromthefather
ensuresthattheorganismhascharacteristicsofbothparents
Thesepairsofchromosomes areknownas homologouschromosomepairs
Thecompletediploidsetofchromosomesarranged accordingtotheirsize shapeandnumberin
homologouspairswithinasomaticcellof anorganism
Thehumankaryotype
consistsof
22pairsofautosomes ordinarychromosomes
1pairofganosomes sexchromosomesthatdeterminesex numb o 9 29Pm g s n lmepairs
is an
in ii ain
Biologicalfemales Biologicalmales
haveanoverall haveanoverall
chromosome
compositionof
comhptflhmf it
is a ani i
