Bio1130 Homework Assignment II

Bio1130 Homework Assignment II - 1. DNA replication is said...

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1. DNA replication is said to be semiconservative because a. the same process of DNA replication is used by all organisms. b. each new DNA molecule is composed of one old strand and one new strand. c. half of the DNA in a cell comes from one parent and the other half from the other parent. d. the number of nucleotides within genes remains constant. 2. Watson and Crick are famous for determining a. the three-dimensional structure of DNA. b. what chemical components are in DNA. c. the role of DNA as the genetic material. d. the presence of nuclein (DNA) in pus cells 3. Why does DNA replication proceed continuously on the leading strand and discontinuously on the lagging strand? a. DNA polymerase synthesizes DNA in two directions. b. DNA polymerase contains more than one subunit. c. DNA ligase operates in only one direction. d. DNA polymerase synthesizes DNA in only one direction 4. Adjacent nucleotides on a strand of DNA are connected to each other by a(n) a. phosphodiester bond. b. hydrogen bond. c. peptide bond. d. hydrophobic interaction 5. Prior to the 1940s, many biologists thought that ____, being made up of 20 types of ____, was the best candidate for genetic material. a. DNA; nucleotides
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b. protein; amino acids c. DNA; amino acids d. protein; nucleotides 6. Reiji Okazaki discovered that what are now called "Okazaki fragments" are produced during DNA replication. These are a. RNA primers on the lagging strand. b. RNA primers on both the lagging and leading strand.
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Bio1130 Homework Assignment II - 1. DNA replication is said...

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