WGUIC652IHeredityIandIGeneticsI(LatestI
2024/I2025IUpdate)I|IStudyIGuideIwithI
QuestionsIandIVerifiedIAnswers|I100%I
Correct|IGradeIA
QUESTION
pointImutation/SingleINucleotideIreplacementIerror
Answer:
aImutationIaffectingIonlyIoneIorIveryIfewInucleotidesIinIaIgeneIsequence.
QUESTION
nondisjunctionIinImeiosisII
Answer:
HomologousIchromosomesIdoInotIseparateIproperlyI(allIcellsIabnormal)
QUESTION
nondisjunctionIinImeisosisI2
Answer:
ChromosomesIfailItoIseparate.I
OneIgameteIlacksIaIchromosome
2InormalIgametesI&I1Iabnormal
QUESTION
,Aneuploidy
Answer:
AbnormalInumberIofIchromosomes.
NormalIisI46Ichromosomes
QUESTION
Euploid
Answer:
normalInumberIofIchromosomes
QUESTION
Polyploidy
Answer:
conditionIinIwhichIanIorganismIhasIextraIsetsIofIchromosomes
QUESTION
Triploidy
Answer:
whenIanIorganismIhasIthreeIcopiesIofIeveryIchromosomeIinsteadIofItwo
QUESTION
TetraploidyI(4n)
,Answer:
fourIsetsIofIchromosomes
QUESTION
Monosomy
Answer:
ChromosomalIabnormalityIconsistingIofItheIabsenceIofIoneIchromosomeIfromItheInor
malIdiploidInumber
QUESTION
Trisomy
Answer:
aIconditionIinIwhichIanIextraIcopyIofIaIchromosomeIisIpresentIinItheIcellInuclei,Icausi
ngIdevelopmentalIabnormalities.IExample:47IchromosomesIinsteadIofI46
Example:IDownISyndromeI(triploidyI21-
causeIbyInondisjunction),IEdwardIsyndrome,IPatauIsyndrome
QUESTION
BaseIAnalogIReplacement
Answer:
MutagenicIchemicalsIthatIresembleInucleotidesIandIareIincorporatedIintoIDNAIorIRNA
IduringIsynthesis
, QUESTION
tautomericIshift
Answer:
aIspontaneousIisomerizationIofIaInitrogenIbaseItoIanIalternateIhydrogenI-
IbondingIform
QUESTION
DamageIbyIradiation
Answer:
EnvironmentalIagent,IenergyItravelsIthroughIspace.
QUESTION
ChemicalImodificationsIofInucleotides
Answer:
chemicalIsubstitution,IchangeIinInumberIofInucleotides,IstructuralIchangeIandIcauseIba
seIpairIchange.
QUESTION
DNAIpolymeraseIproofreading
Answer:
AnIautomaticIerrorIcorrectingIprocess
2024/I2025IUpdate)I|IStudyIGuideIwithI
QuestionsIandIVerifiedIAnswers|I100%I
Correct|IGradeIA
QUESTION
pointImutation/SingleINucleotideIreplacementIerror
Answer:
aImutationIaffectingIonlyIoneIorIveryIfewInucleotidesIinIaIgeneIsequence.
QUESTION
nondisjunctionIinImeiosisII
Answer:
HomologousIchromosomesIdoInotIseparateIproperlyI(allIcellsIabnormal)
QUESTION
nondisjunctionIinImeisosisI2
Answer:
ChromosomesIfailItoIseparate.I
OneIgameteIlacksIaIchromosome
2InormalIgametesI&I1Iabnormal
QUESTION
,Aneuploidy
Answer:
AbnormalInumberIofIchromosomes.
NormalIisI46Ichromosomes
QUESTION
Euploid
Answer:
normalInumberIofIchromosomes
QUESTION
Polyploidy
Answer:
conditionIinIwhichIanIorganismIhasIextraIsetsIofIchromosomes
QUESTION
Triploidy
Answer:
whenIanIorganismIhasIthreeIcopiesIofIeveryIchromosomeIinsteadIofItwo
QUESTION
TetraploidyI(4n)
,Answer:
fourIsetsIofIchromosomes
QUESTION
Monosomy
Answer:
ChromosomalIabnormalityIconsistingIofItheIabsenceIofIoneIchromosomeIfromItheInor
malIdiploidInumber
QUESTION
Trisomy
Answer:
aIconditionIinIwhichIanIextraIcopyIofIaIchromosomeIisIpresentIinItheIcellInuclei,Icausi
ngIdevelopmentalIabnormalities.IExample:47IchromosomesIinsteadIofI46
Example:IDownISyndromeI(triploidyI21-
causeIbyInondisjunction),IEdwardIsyndrome,IPatauIsyndrome
QUESTION
BaseIAnalogIReplacement
Answer:
MutagenicIchemicalsIthatIresembleInucleotidesIandIareIincorporatedIintoIDNAIorIRNA
IduringIsynthesis
, QUESTION
tautomericIshift
Answer:
aIspontaneousIisomerizationIofIaInitrogenIbaseItoIanIalternateIhydrogenI-
IbondingIform
QUESTION
DamageIbyIradiation
Answer:
EnvironmentalIagent,IenergyItravelsIthroughIspace.
QUESTION
ChemicalImodificationsIofInucleotides
Answer:
chemicalIsubstitution,IchangeIinInumberIofInucleotides,IstructuralIchangeIandIcauseIba
seIpairIchange.
QUESTION
DNAIpolymeraseIproofreading
Answer:
AnIautomaticIerrorIcorrectingIprocess