o o o o BIO201L
(LAB 3) Straighter line anatomy and physiology 1
lab BIO201L Mitosis and Meiosis worksheet 2025
New Update
StudentoName:oClickohereotooenterotext.
AccessoCodeo(locatedoonotheolidoofoyourolabokit):oClickohereotooenterotext.
Pre-LaboQuestions
1. Whatoareochromosomesomadeoof?
ChromosomesoareostructuresocomposedoofoDNAoandoproteinsoknownoasochromatin.oWithinochromat
in,othereoisoaocomponentocalledoaonucleosome.
2. Compareoandocontrastomitosisoandomeiosis.
Bothomeiosisoandomitosisostartowithoonlyotwoochromosomesoandoinvolveotheocreationoofonewo
cells.oHowever,omeiosisodoesonotoinvolveocrossingooveroandosynapsis,owhereasomitosis,owhich
ooccursoinosomaticocells,odoes.oMitosisoproducesobodyocells,owhileomeiosisoproducesogamete
s.
3. Canceroisoaodiseaseorelatedotoouncontrolledocellodivision.oInvestigateotwooknownocausesofor
otheseorapidlyodividingocellsoandouseothisoknowledgeotooinventoaodrugothatowouldoinhibitotheogro
wthoofocancerocells.
Theomainofactorsoinfluencingocellodivisionoareogeneticoandoenvironmentaloinfluences.oTooaddressoca
ncerousocells,oIowouldodevelopoaomedicationothatospecificallyotargetsotheoreceptorsoonothoseocells,o
preventingotheiroreplication.
Experimento1:oObservationoofoMitosisoinoaoPlantoCell
Tableo1:oMitosisoPredictions
Ioestimateothatotheodurationoofointerphaseowillobeoapproximatelyo
Predictions 21ohours,otheomitoticophaseowillolastoforo3ohours,oandocytokinesis
owillotakeoaroundo45ominutes.
Amongotheophasesoofomitosis,ointerphaseoisotheolongestoandocanol
Supportingo Evidence
astofromoeighteenotootwenty-fourohours.
, Lab 3 Mitosis and Meiosis
o o o o BIO201L
Tableo2:oMitosisoData
ChosenoImage Clickohereotooenterotext.
NumberoofoCellsoinoSt Calculatedo%oofoTimeoS
Stage TotaloNumberoofoCells
age pentoinoStage
Interphase 18 24 75
Prophase 2 24 8.3
Metaphase 0 24 0