DNA Polymerase Another enzyme, and arguably the most important, is DNA polymerase. This enzyme's function in a cell is to add nucleotides to the growing strand of DNA. DNA polymerase reads the bases on the original (template) strand and adds the complementary bases to the growing strand of DNA. Another type of DNA polymerase proofreads DNA. It corrects any incorrectly matched nucleotides by removing the incorrect one and replacing it with the correct one. 17. is responsible for adding new nucleotides to the DNA strand being created. 18. DNA polymerase knows what nucleotide to add next because it reads the strand. 19. Adenine pairs with DNA Polymerase DNA Primase For DNA polymerase to begin adding new nucleotides, it needs a starting point or a primer. The enzyme responsible for laying down an RNA primer is called DNA primase. This primer tells the DNA polymerase where to begin. Without it, DNA polymerase would be unable to add new nucleotides. The RNA primer is eventually removed and replaced with DNA nucleotides by another type of DNA polymerase. DNA Primase 26. DNA polymerase starts adding new nucleotides at an RNA 27. DNA adds an RNA primer that is complementary to the template RNA Primer RNA strand of DNA. Nucleotide

DNA Polymerase Another enzyme, and arguably the most important, is DNA polymerase. This enzyme's function in a cell is to add nucleotides to the growing strand of DNA. DNA polymerase reads the bases on the original (template) strand and adds the complementary bases to the growing strand of DNA. Another type of DNA polymerase proofreads DNA. It corrects any incorrectly matched nucleotides by removing the incorrect one and replacing it with the correct one. 17. is responsible for adding new nucleotides to the DNA strand being created. 18. DNA polymerase knows what nucleotide to add next because it reads the strand. 19. Adenine pairs with DNA Polymerase DNA Primase For DNA polymerase to begin adding new nucleotides, it needs a starting point or a primer. The enzyme responsible for laying down an RNA primer is called DNA primase. This primer tells the DNA polymerase where to begin. Without it, DNA polymerase would be unable to add new nucleotides. The RNA primer is eventually removed and replaced with DNA nucleotides by another type of DNA polymerase. DNA Primase 26. DNA polymerase starts adding new nucleotides at an RNA 27. DNA adds an RNA primer that is complementary to the template RNA Primer RNA strand of DNA. Nucleotide

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter15: Genomes And Genomics

Section: Chapter Questions

Problem 6QP: Which of the following best describes the process of DNA sequencing? a. DNA is separated on a gel,...

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DNA Profiles as Tools for Identification A PCR-based paternity test is conducted using STRs that consistently produce a unique DNA fragment pattern from a single chromosome. Examining the results of the following Southern blot, which male(s) can be excluded as the father of the child? Which male(s) could be the father of the child?
During proofreading, which of the following enzymes reads the DNA? primase topoisomerase DNA pol helicase
Which of the following best describes the process of DNA sequencing? a. DNA is separated on a gel, and the different bands are labeled with fluorescent nucleotides and scanned with a laser. b. A laser is used to fluorescently label the nucleotides present within the DNA, the DNA is run on a gel, and then the DNA is broken into fragments. c. Nucleotides are scanned with a laser and incorporated into the DNA that has been separated on a gel, and then the DNA is amplified with PCR. d. Fragments of DNA are produced in a reaction that labels them with any of four different fluorescent dyes, and the fragments then are run on a gel and scanned with a laser. e. DNA is broken down into its constituent nucleotides, and the nucleotides are then run on a gel and purified with a laser.
Which of the following enzymes relaxes the DNA double helix to avoid tensional force from supercoiling? DNA Ligase DNA Helicase DNA Gyrase/Topoisomerase DNA Polymerase
Polymerase chain reaction is—   a reaction involving a chain of different types of polymerases acting successively on a DNA. a way DNA replicates in the living cell. governed by the Henderson-Hasselbalch equation. a chain reaction mediated by polymerase to amplify DNA fragments of defined sequence. DNA polymerization without a template.
Polymerases work is to add 10 nucleotides to a DNA strand before dissociating. During replication process, DNA pol III can add tens of thousands of nucleotides at a moving fork. How this additionaccomplished?
Which of the following best explains the leading daughter DNA strand? The leading strand is synthesized by the enzyme primase. It is polymerized discontinuously by DNA polymerase from 5' - 3' direction which leaves gaps knowns as Okazaki fragments. The gaps within the leading strand are sealed by DNA ligase. It is polymerized continuously by DNA polymerase from 5' - 3' direction.
The DNA polymerase cannot start making a new DNA polymer out of nothing, it needs preexisting nucleic acid to hook the new DNA onto. What is this preexisting nucleic acid called, what enzyme makes it, and what nucleic acid is the preexisting nucleic acid made of?
A biochemist isolates, purifies, and combines in a test tubea variety of molecules needed for DNA replication. Whenshe adds some DNA to the mixture, replication occurs, buteach DNA molecule consists of a normal strand paired withnumerous segments of DNA a few hundred nucleotides long.What has she probably left out of the mixture?(A) DNA polymerase(B) DNA ligase(C) Okazaki fragments(D) primase
How would nucleotide excision repair be affected if one of the followingproteins was missing? Describe the condition of the DNAif the repair was attempted in the absence of the protein.A. UvrAB. UvrCC. UvrDD. DNA polymerase
DNA polymerases have exonuclease activity that hydrolyzes DNA in the 3′ to 5′ direction. When an incorrect base is incorporated, it is removed by the exonuclease activity. true or false Endonuclease activity can remove an error in the middle of the DNA strand like DNA polymerase 1 that removes RNA primer. True or false DNA polymerases can recognize errors and engage exonuclease activity to fix the error on the spot. true or fale?
What enzyme proofreads the DNA molecule? Group of answer choices DNA gyrase DNA polymerase I DNA helicase DNA polymerase III