BIO 2 FINAL EXAM- PALMTAG FGCU
WITH COMPLETE SOLUTIONS
What yare ythe ykey yfeatures yof ynatural yselection? y- ycorrect yanswers y-genetic
yvariation
over yproduction yof yoffspring
struggle yfor yexistence
Acquired yvs. yInherited ytraits y- ycorrect yanswers y-Acquired- ychanges ymade yto ybody
ythat ydon't yaffect yDNA
Inherited- ytraits yderived yfrom yDNA
What ywas yDarwin's yand yWallace's ycontribution yto yscience? y- ycorrect yanswers y-
mechanism yfor ywhich yevolution yoccurs, yevolution ywith ynatural yselection
, What yis ythe yrole ythat ypopulations yplay yin ynatural yselection yand yevolution? y-
ycorrect yanswers y-natural yselection yand yevolution yoccur yat ythe ypopulation ylevel
What yis yHardy yWeinburg yequilibrium? y- ycorrect yanswers y-p^2 y+ y2pq+ yq^2 y=1
-If ya ypopulation yis yat yequilibrium, y(percentages ydon't ychange)
y-No ygenetic ydrift, ygene yflow, yno ynatural yselection, yno ynew yalleles, yno ysexual
yselection
-Genetic ydrift, ygene yflow, yand ynatural yselection ycause ymost yevolutionary ychange
Genetic yDrift y- ycorrect yanswers y-Chance yevents ycause ythe yallele yfrequency yof ya
ysmall ypopulation yto yfluctuate yunpredictably
-Founder yEffect, ysmall ysub ypopulation ygoes ysomewhere yelse
-Bottleneck yEffect, ynatural ydisaster, ysudden ychange yin yenvironment
Gene yFlow y- ycorrect yanswers y-The yaddition yor ysubtraction yof yalleles ydue yto ythe
ymovement yof yreproductively yviable yindividuals
Natural ySelection y- ycorrect yanswers y-Alleles ythat yenhance ysurvival yand
yreproduction yincrease yover ytime
Biological ySpecies yConcept y- ycorrect yanswers y--if yit ycan ybreed yand yproduce
yoffspring ythen yit's ythe ysame yspecies
-No ygene yflow
Morphological ySpecies yConcept y- ycorrect yanswers y-Morphology, ybody yshape,
ystructural yfeatures
-gene yflow yis yunknown
Ecological ySpecies yConcept y- ycorrect yanswers y-Defines yspecies ybased yon
y"ecological yniche"
Two yspecies ymay ymaintain ydifferent yecological yniches yand/or ybehavior, yand/or
ymorphology yyet yoccasionally yinterbreed y(gene yflow)
Pre yzygotic ybarriers y- ycorrect yanswers y--no yzygote yis yformed
-temporal yisolation
-mechanical yisolation
-gametic yisolation
Post yzygotic ybarriers y- ycorrect yanswers y--Zygote yis yformed
-Hybrid yBreakdown
-Reduced yhybrid yviability
-Reduced yhybrid yfertility
Sympatric yspeciation y- ycorrect yanswers y-separated yby ybehavior
WITH COMPLETE SOLUTIONS
What yare ythe ykey yfeatures yof ynatural yselection? y- ycorrect yanswers y-genetic
yvariation
over yproduction yof yoffspring
struggle yfor yexistence
Acquired yvs. yInherited ytraits y- ycorrect yanswers y-Acquired- ychanges ymade yto ybody
ythat ydon't yaffect yDNA
Inherited- ytraits yderived yfrom yDNA
What ywas yDarwin's yand yWallace's ycontribution yto yscience? y- ycorrect yanswers y-
mechanism yfor ywhich yevolution yoccurs, yevolution ywith ynatural yselection
, What yis ythe yrole ythat ypopulations yplay yin ynatural yselection yand yevolution? y-
ycorrect yanswers y-natural yselection yand yevolution yoccur yat ythe ypopulation ylevel
What yis yHardy yWeinburg yequilibrium? y- ycorrect yanswers y-p^2 y+ y2pq+ yq^2 y=1
-If ya ypopulation yis yat yequilibrium, y(percentages ydon't ychange)
y-No ygenetic ydrift, ygene yflow, yno ynatural yselection, yno ynew yalleles, yno ysexual
yselection
-Genetic ydrift, ygene yflow, yand ynatural yselection ycause ymost yevolutionary ychange
Genetic yDrift y- ycorrect yanswers y-Chance yevents ycause ythe yallele yfrequency yof ya
ysmall ypopulation yto yfluctuate yunpredictably
-Founder yEffect, ysmall ysub ypopulation ygoes ysomewhere yelse
-Bottleneck yEffect, ynatural ydisaster, ysudden ychange yin yenvironment
Gene yFlow y- ycorrect yanswers y-The yaddition yor ysubtraction yof yalleles ydue yto ythe
ymovement yof yreproductively yviable yindividuals
Natural ySelection y- ycorrect yanswers y-Alleles ythat yenhance ysurvival yand
yreproduction yincrease yover ytime
Biological ySpecies yConcept y- ycorrect yanswers y--if yit ycan ybreed yand yproduce
yoffspring ythen yit's ythe ysame yspecies
-No ygene yflow
Morphological ySpecies yConcept y- ycorrect yanswers y-Morphology, ybody yshape,
ystructural yfeatures
-gene yflow yis yunknown
Ecological ySpecies yConcept y- ycorrect yanswers y-Defines yspecies ybased yon
y"ecological yniche"
Two yspecies ymay ymaintain ydifferent yecological yniches yand/or ybehavior, yand/or
ymorphology yyet yoccasionally yinterbreed y(gene yflow)
Pre yzygotic ybarriers y- ycorrect yanswers y--no yzygote yis yformed
-temporal yisolation
-mechanical yisolation
-gametic yisolation
Post yzygotic ybarriers y- ycorrect yanswers y--Zygote yis yformed
-Hybrid yBreakdown
-Reduced yhybrid yviability
-Reduced yhybrid yfertility
Sympatric yspeciation y- ycorrect yanswers y-separated yby ybehavior
