l l l l l l l l l l l l
1. Everylpersonlstartsllifelaslalsinglelcelllcalledlanlembryo.
A) True
B) False
2. Almostleverylcelllinlthelhumanlbodylhasl23lsinglelchromosomes.
A) True
B) False
3. Geneslarellocatedlonlchromosomes.
A) True
B) False
4. Thelfirstl22lchromosomeslcontainlhundredsloflgeneslinlthelsamelpositionslandlsequence.
l Iflthel codeloflthelgenelfromlonelparentlislexactlyllikelthelcodeloflthelsamelgenelfromlthelot
herlparent,lthelgenelpairlislheterozygous.
A) True
B) False
5. Eachlvariationloflalparticularlgenelislcalledlanlalleleloflthatlgene.
A) True
B) False
6. Anlindividual'slcollectionloflgeneslislcalledlalphenotype.
A) True
B) False
7. Anlindividual'slphenotypeldependslentirelylonlanlindividual'slgenes.
A) True
B) False
8. Alllhumanslhavelaboutl100,000lgenes.
A) True
B) False
9. Iflthel23rdlpairloflchromosomeslcontainsltwolXlchromosomes,lthatlindividuallislalmale.
A) True
B) False
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10. Iflthel23rdlpairloflchromosomeslcontainslonelXlchromosomelandlonelYlchromosome,ltheli
ndividuallislalmale.
A) True
B) False
11. EverylovumlalwomanlcreateslcontainslanlXlchromosome.
A) True
B) False
12. Thelmother'slovumldetermineslwhetherltheldevelopinglbabylwilllbecomelalboylorlalgirl.
A) True
B) False
13. Dizygoticltwinsloriginatelfromlthelsamelzygote;ltherefore,ltheylhavelthelsamelgenotype.
A) True
B) False
14. Almostleveryltraitlislpolygenic,lwhichlmeanslitlislaffectedlbylmanylgenes.
A) True
B) False
15. Whenltheleffectsloflgenesladdlupltolmakelthelphenotype,ltheylarelcalledldom
inant–recessivelgenes.
A) True
B) False
16. Whenlalpersonlinheritslalrecessivelgenelthatlislnotlexpressedlinlthelphenotype,lthatlpers
onlislalcarrierloflthelgene.
A) True
B) False
17. Whenlthel23lpairsloflchromosomeslduplicatelandlformltwolcompletelsetsloflthelgen
ome,lthislprocesslislreferredltolaslduplication.
A) True
B) False
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18. Thelfirstltwolweeksloflprenatalldevelopmentlarelcalledlthelfetallperiod.
A) True
B) False
19. Thelcellslthatlresultlfromlthelearlylduplicationlandldivisionlprocesseslarelcalledlstemlcells
,lwhichlarelableltolproducelanylotherlspecializedlcell.
A) True
B) False
20. Atlthelendloflthelembryoniclperiod,lthelembryolhaslallloflthelbasiclorganslandlbodylpartsl
(exceptlsexlorgans)loflalhumanlbeing.
A) True
B) False
21. Thelfetuslgainslaboutl2lpoundslinlthelthirdltrimester.
A) True
B) False
22. Birthltakeslplacelaroundl266ldayslafterlconception.
A) True
B) False
23. ThelApgarlscalelrefersltolthelagelatlwhichlalfetuslmightlsurviveliflborn.
A) True
B) False
24. ThelApgarlscalelmeasureslcolor,lheartlrate,lcry,lmuscleltone,landlbreathing.
A) True
B) False
25. Alnewborn'slcrylislassessedlwhenlassigninglanlApgarlscore.
A) True
B) False
26. HomelbirthslarelmorelcommonlinlEuropeanlnationslthanlinlthelUnitedlStates.
A) True
B) False
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27. Doulaslhavelbeenlshownltolhavellittlelbenefitlinlhelpinglwomenlduringlthelbirthlpro
cess.
A) True
B) False
28. Betweenl8landl15lpercentloflalllwomenlexperiencelpostpartumldepressionlinltheldayslandl
weekslafterlgivinglbirth.
A) True
B) False
29. Birth-
relatedlcomplicationslarelmorellikelylwhenltherelislalfatherllistedlonlthelbirthlrecord.
A) True
B) False
30. ThelBrazeltonlNeonatallBehaviorallAssessmentlScalel(NBAS)lislaltestloftenladminis
teredltolnewbornslthatlmeasureslresponsivenesslandlrecordsl46lbehaviors,lincludingl2
0lreflexes.
A) True
B) False
31. Couvadelislwhenlthelzygotelembedslitselflintolthellininglofltheluterus.
A) True
B) False
32. Behaviorallteratogenslcauselphysicalldefects.
A) True
B) False
33. Geneslcanlinfluenceltheleffectsloflteratogens.
A) True
B) False
34. Thelmostlcommonlextra-chromosomelconditionlislfragilelXlsyndrome.
A) True
B) False
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