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What are genes? Ans: Segments of DNA that encode proteins or RNA. What is transcription? Ans: The process where the nucleotide gene sequence is copied into RNA. What is translation? Ans: The process where the nucleotide sequence of RNA is used to specify the order of amino acids in a protein. What are the main components of present-day biological membranes? Ans: They are composed of phospholipids, which have hydrophobic hydrocarbon chains and hydrophilic head gro...

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The length of time it takes for the cells labeled during DNA synthesis to begin to enter mitosis is a good estimate of the length of the _______ phase(s). a. G1 b. S c. G2 d. M Ans: c. G2 In a typical cycling mammalian cell, _______ of the cell cycle is spent in interphase. a. 99% b. 95% c. 75% d. 50% Ans: b. 95% All rights reserved © 2025/ 2026 | Page | 2 The number of cells in the different phases of a population can be determined most easily by using a(n...

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In the nucleus, introns are removed from transcripts by: a. endonucleases. b. restriction nucleases. c. splicing. d. exonucleases. Ans: c. splicing The DNA of eukaryotic cells is wrapped around histones to form structures called a. nuclear matrices b. centromeres c. nucleosomes d. nucleoli Ans: c. nucleosomes Telomeres are a. microtubule binding sites in the center of chromosomes. b. sites at the ends of chromosomes where DNA replication begins. All rights reserve...

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MMSC490 FINAL EXAM QUESTIONS AND ANSWERS The eukaryotic cell cycle is composed of four phases in the following order: a. G1; S; G2; M b. G1; G2; S; M c. G1; M; G2; S d. S; G1; G2; M - CORRECT ANSWERA

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The feature that most clearly distinguishes eukaryotes from prokaryotes is the presence of .......... in eukaryotic cells. A. oxidative phosphorylation B. RNA molecules C. ribosomes D. a nucleus - ANS D. a nucleus Cytoplasmic organelles are a. present in prokaryotic cells and absent in eukaryotic cells. b. present in both prokaryotic and eukaryotic cells. c. absent in both prokaryotic and eukaryotic cells. d. absent in prokaryotic cells and present in eukaryotic cells. - ANS d. absent ...

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The eukaryotic cell cycle is composed of four phases in the following order: a. G1; S; G2; M b. G1; G2; S; M c. G1; M; G2; S d. S; G1; G2; M - ANS A The length of time it takes for the cells labeled during DNA synthesis to begin to enter mitosis is a good estimate of the length of the _______ phase(s). a. G1 b. S c. G2 d. M - ANS C In a typical cycling mammalian cell, _______ of the cell cycle is spent in interphase. a. 99% b. 95% c. 75% d. 50% - ANS B Cell cycles of early embryo...

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The eukaryotic cell cycle is composed of four phases in the following order: a. G1; S; G2; M b. G1; G2; S; M c. G1; M; G2; S d. S; G1; G2; M Ans: A The length of time it takes for the cells labeled during DNA synthesis to begin to enter mitosis is a good estimate of the length of the _______ phase(s). a. G1 b. S c. G2 d. M Ans: C In a typical cycling mammalian cell, _______ of the cell cycle is spent in interphase. a. 99% b. 95% c. 75% © 2025/ 2026 | ® All...

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