MCQ Chapter 7 Biology Class 11 Maharashtra Board Cell Division 1. What structure forms during cytokinesis in plant cells?Cleavage furrowCell plateContractile ringKinetochore fibresQuestion 1 of 202. What is the role of kinetochore fibres during mitosis?They elongate the cellThey contract to pull chromosomesThey form the cell plateThey connect centriolesQuestion 2 of 203. What is maintained constant due to mitosis?Cell sizeChromosome numberDNA contentNucleolus sizeQuestion 3 of 204. What does mitosis help replace?GametesOld and worn-out cellsOrganellesNucleoliQuestion 4 of 205. What is apoptosis?Random cell deathProgrammed cell deathCell divisionDNA replicationQuestion 5 of 206. What is the purpose of meiosis?Growth of somatic cellsFormation of gametesReplacement of old cellsDNA replicationQuestion 6 of 207. What is another name for meiosis?Equational divisionReductional divisionDirect divisionHomotypic divisionQuestion 7 of 208. How many daughter cells are produced by meiosis?Two diploid cellsFour haploid cellsTwo haploid cellsFour diploid cellsQuestion 8 of 209. What is the first meiotic division called?Homotypic divisionHeterotypic divisionEquational divisionCytokinesisQuestion 9 of 2010. Which phase of meiosis has the longest duration?Metaphase-IProphase-IAnaphase-ITelophase-IQuestion 10 of 2011. What happens during the leptotene stage of prophase-I?Synapsis occursChromosomes become distinctCrossing-over occursChiasmata formQuestion 11 of 2012. What is synapsis?Division of centromeresPairing of homologous chromosomesFormation of spindle fibresUncoiling of chromosomesQuestion 12 of 2013. What structure forms during zygotene?ChiasmataSynaptonemal complexCell plateKinetochore fibresQuestion 13 of 2014. What is visible during pachytene?TetradsNucleolusSpindle fibresCell plateQuestion 14 of 2015. What is crossing-over?Division of cytoplasmExchange of genetic materialFormation of tetradsDisappearance of nucleolusQuestion 15 of 2016. What is desynapsis?Pairing of chromosomesRepulsion between homologous chromosomesFormation of chiasmataDivision of centromeresQuestion 16 of 2017. What is terminalization in diakinesis?Formation of chiasmataMovement of chiasmata towards chromosome endsDisappearance of spindle fibresReappearance of nucleolusQuestion 17 of 2018. Where do tetrads orient during metaphase-I?At the polesAt the equatorNear the centriolesRandomlyQuestion 18 of 2019. What is disjunction in anaphase-I?Separation of sister chromatidsSeparation of homologous chromosomesFormation of daughter nucleiReformation of nuclear membraneQuestion 19 of 2020. What happens to chromosomes in telophase-I?They condense furtherThey become uncoiled and elongatedThey align at the equatorThey divide againQuestion 20 of 20 Loading...
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