Which of the following statements is true regarding DNA replication? Select all true statements. DA DNA polymerase moves along the template strand in the 3' to 5' direction. OB DNA polymerase requires a primer to initiate replication. DC. DNA polymerase forms a covalent bond between a phosphate group and a hydroxyl group OD DNA replication on lagging and leading strand occurs in the 5' to 3' direction.

Which of the following statements is true regarding DNA replication? Select all true statements. DA DNA polymerase moves along the template strand in the 3' to 5' direction. OB DNA polymerase requires a primer to initiate replication. DC. DNA polymerase forms a covalent bond between a phosphate group and a hydroxyl group OD DNA replication on lagging and leading strand occurs in the 5' to 3' direction.

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter8: The Structure, Replication, And Chromosomal Organization Of Dna

Section: Chapter Questions

Problem 20QP: What is the function of DNA polymerase? a. It degrades DNA in cells. b. It adds RNA nucleotides to a...

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DNA replication requires ________ . a. DNA polymerase c. primers b. nucleotides d. all are required
Make the complementary strand for the following DNA template and label both strands as 5 to 3 or 3 to 5 (P = phosphate in the diagram). Draw an arrow showing the direction of synthesis of the new strand. How many hydrogen bonds are in this double strand of DNA? template: PAGGCTCGOH new strand:
How does DNA replication occur in a precise manner to ensure that identical genetic information is put into the new chromatid? See Figures 8.12 and 8.13. FIGURE 8.12 In DNA replication, the two polynucleotide strands uncoil, and each is a template for synthesizing a new strand. A replicated DNA molecule contains one new strand and one old strand. This mechanism is called semiconservative replication. FIGURE 8.13 A close-up look at the process of DNA replication. (a) As the strands uncoil, bases are added to the newly synthesized strand by complementary base pairing with bases in the template strand. The new bases are linked together by DNA polymerase. (b) DNA synthesis can proceed only in the 5 3 direction; newly synthesized DNA on one template strand is made in short segments and linked together by the enzyme DNA ligase.
What is the function of DNA polymerase? a. It degrades DNA in cells. b. It adds RNA nucleotides to a new strand. c. It coils DNA around histones to form chromosomes. d. It adds DNA nucleotides to a replicating strand. e. None of these.
Which of the following statements about DNA replication is FALSE? Select one: Unwinding of the DNA molecule occurs as hydrogen bonds break. The new strand of DNA is synthesized from 5’ to 3’ direction. Replication occurs as each base is paired with the same base. In eukaryotes, replication can occur at numerous replication bubbles, each with two forks.
Which of the following most correctly describes a process that occurs during DNA replication? Group of answer choices Replication of the lagging strand occurs in the 5' → 3' direction—the leading strand in the 3' → 5' direction. Replication is continuous on the lagging strand and discontinuous on the leading strand. Okazaki fragments are DNA fragments synthesized on the lagging strand. DNA polymerase adds dNTP monomers in the 3′–5′ direction. Replication is continuous on the lagging strand and discontinuous on the leading strand.
Which of the following statements about replication is false? The proofreading function of DNA polymerases involves 3’ 5’ exonuclease activity. Origins of replication are rich in G-C nucleotide pairs. A characteristic of aging cells is that telomeres become shorter. The lagging strand is synthesized in the opposite direction as the movement of the replication fork. DNA polymerase is more accurate that RNA polymerase.
The following DNA sequence is at the start of a DNA strand: 3'—AATTCGAGATTCA—5'. Which of the primer sequences below would be synthesized from this strand by DNA primase to initiate DNA replication? Group of answer choices a 3'—TTAACGTCTAAGT—5' b 3'—UUAAGCUCUAAGU—5' c 5'—TTAACGTCTAAGT—3' d 5'—UUAAGCUCUAAGU—3'
DNA replication begins on a double helix at specific sites, called origins of replication where DNA polymerases make the covalent bonds between the nucleotides of a new DNA strand and replication then proceeds in both directions. Select one: True False
Which of the following statements about DNA replication is correct? Group of answer choices the leading strand is replicated continuously, while the lagging strand is replicated discontinuously on the leading strand, the new nucleotides are added only to the 5' end of the nucleotide chain on the lagging strand, the new nucleotides are added only to the 5' end of the nucleotide chain DNA polymerase works from 3'--> 5' only
A drug that inhibits the DNAa protein is added to a culture of E. coli cells. What is the first step of DNA replication that will be impaired by this drug? Group of answer choices Keeping parent DNA strands separated Releasing tension generated by supercoiling Activating the origin of replication Making primers Forming phosphodiester bonds
Which of the following statements BEST describes the process of DNA Replication? Group of answer choices The two strands of the parental molecule separate and serves as template for synthesis of a new strand. Each new strand is identical to its template strand. Each strand of both daughter molecules contains a mixture of old and newly synthesized DNA. The two parental strands reassociate after acting as templates for new strands restoring the parental double helix.