Describe the role of the proteins involved with DNA replication. Also identify if the protein is involved the leading strand, lagging strand or both. DNA Ligase DNA Polymerase I DNA Polymerase III Helicase Primase Single-stranded DNA-binding proteins Topoisomerase

Describe the role of the proteins involved with DNA replication. Also identify if the protein is involved the leading strand, lagging strand or both. DNA Ligase DNA Polymerase I DNA Polymerase III Helicase Primase Single-stranded DNA-binding proteins Topoisomerase

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter8: Dna Structure And Function

Section: Chapter Questions

Problem 9SA: Energy that drives the attachment of a nucleotide to the end of a growing strand of DNA comes from...

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Concept explainers

Viral Replication

The virus is acellular and considered non-living outside the host cell. The replication of the virus occurs only inside the living cells. Only a few genes are present in the smallest virus, whereas many genes are present in the largest virus. These genes encode specific viral proteins.

Question

Describe the role of the proteins involved with DNA replication. Also identify if the protein is involved the leading strand, lagging strand or both.
1. DNA Ligase

DNA Polymerase I

DNA Polymerase III

Helicase

Primase

Single-stranded DNA-binding proteins

Topoisomerase

Definition Definition Mechanism by which deoxyribonucleic acid (DNA) is capable of producing an exact copy of itself. DNA molecules utilize a semiconservative method for replication. DNA replication is the most essential part of biological inheritance and is crucial for cell division during growth and repair of damaged tissues.

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The initial mechanism for repairing nucleotide errors in DNA is _____. a. mismatch repair b. DNA polymerase proofreading c. nucleotide excision repair d. thymine dimers
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Match the terms appropriately. ___ nucleotide ___ clone a. nitrogen-containing base, sugar, phosphate groups ___ autosome b. copy of an organism ___ DNA polymerase c. does not determine sex ___ mutation d. injects DNA ___ bacteriophage e. replication enzyme ___ semiconservative replication f. can cause cancer g. something old, something new ___ DNA ligase h. seals gaps and breaks
Energy that drives the attachment of a nucleotide to the end of a growing strand of DNA comes from ________. a. the nucleotide b. DNA polymerase c. phosphate-group transfers from ATP
Circle the following elements that are directly involved in DNA replication process DNA helicase RNA primase Sliding clamp DNA polymerase DNA ligase
Define the following terms related to DNA replication: origin of replication, helicase, single-strand binding proteins, topoisomerase, primase, RNA primer, DNA polymerase III, DNA polymerase I, and DNA ligase.
Given the replication events listed below which even takes place first Single Strand binding proteins bind Primase adds an RNA primer Helicase unwinds the DNA double helix DNA polymerase begins adding DNA nucleotides
Which of the following enzymes is responsible for ensuring that genetic material at the end of the chromosome is not lost during DNA replication? a. Helicase b. DNA Polymerase c. Telomerase d. DNA Ligase e. Primase
List the stage of DNA replication when each of the following enzymes is active. a. helicase b. primase c. DNA polymerases d. ligase e. topoisomerase f. DNA gyrase
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