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ISU BIOL 211 - Practice Exam #3

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Biology 211 (5) ~ SI Practice Exam #3 ~ www.si.iastate.edu ~ 11/5/071.) During cell division…a.) Mitosis comes before cytokinesis.b.) Cytokinesis comes before mitosis.c.) Mitosis and cytokinesis happen at the same time.d.) none of the above. 2.) Mitosis yieldsa.)4 identical daughter cells. b.) 2 non-identical daughter cells.c.) 2 identical daughter cells. d.) 4 non-identical daughter cells. 3.) During interphase of the mitotic cell cycle,a.) cellular growth only occurs during the G1 and G2 phase.b.) cellular growth occurs during all subphases.c.) cellular growth occurs only during S phase.d.) cellular growth only occurs during mitosis.4.) The transmission of traits from one generation to another is called:a.) genetic recombination. b.) meiosis.c.) gene transmission. d.) inheritance. 5.) Chromosomes in a pair that have the same length, staining pattern, and centromere position are known as_________________.a.) homolougues. b.) sister chromatidsc.) somatic chromosomes. d.) none of the above.6.) Gametes are produced by ____________ which takes place in the _____________ part of the life cycle. a.) mitosis, haploid. b.) mitosis, diploid.c.) meiosis, diploid. d.) meiosis, haploid. 7.) Which of the following is not true about alleles? a.) Alleles are another name for sister chromatids.b.) Alleles are alternate versions of genes.c.) Alleles account for the variation in inherited characters.d.) All of the above are true.8.)What are the resulting probabilities of a cross between QQ and Qq?a.) 25% QQ: 50% Qq: 25% qq b.) 50% QQ: 25 Qq: 25% qqc.) 50% QQ: 50% Qq d.) 75% QQ: 25% Qq9.) Cyctic Fibrosis is an example of __________________.?a.) plieotrophy b.) multiple allelesc.) epistasis d.) incomplete dominance10.) Trisomy 21 is an example of_________________.a.) Polyploidy b.) Aneuploidyc.) monosomy d.) none of the above. 11.) Darwin coined the term________________.a.) evolution b.) gradualismc.) natural selection d.) uniformitarianism. 12.) What is the differential success in reproduction that results from the interaction between individuals that vary in heritable traits and their environments?a.) survival of the fittest. b.) natural selectionc.) evolution d.) inheritance13.) What is the smallest unit that can evolve?a.) family b.) an individualc.) population d.) species14.) A localized group of individuals capable of interbreeding and producing fertile offspring is a__________________.a.) species b.) familyc.) pack d.) population.15.) New genes and alleles originate only bya.) mutations b.) genetic driftc.) natural selection d.) gene flow16.) Which of the following is not a condition for Hardy-Weinberg Equilbirum?a.) Extremely large population sizeb.) No gene flowc.) Mutations must occurd.) No Natural Selection can occur. 17.) A sudden change in the environment that may drastically reduce the size of a population is called __________________________________.a.) Genetic Drift b.) the Founder Effectc.) Gene Flow d.) the Bottleneck Effect18.) The __________________ species concept cannot be applied to asexual organisms.a.) biological b.) morphologicalc.) ecological d.)


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ISU BIOL 211 - Practice Exam #3

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