Match the enzymes involved in DNA replication with their function. Primase [ Choose ] [ Choose] Synthesizes short RNA segment to initiate new DNA strand Main enzyme that extends RNA primer by adding DNA nucleotides to it Stabilizes single-stranded DNA Relieves over-winding of DNA ahead of the replication fork Removes RNA primers preceding Okazaki fragment and replaces RNA nucleotides with DNA nucleotides Helicase Single-stranded binding proteins Unwinds DNA helix Synthesizes the ends of the linear chromosome Seals nicks between adjacent DNA segments DNA polymerase II [ Choose ] DNA polymerase I [ Choose ] DNA Ligase [ Choose ] Topoisomerase [ Choose ] > >

Match the enzymes involved in DNA replication with their function. Primase [ Choose ] [ Choose] Synthesizes short RNA segment to initiate new DNA strand Main enzyme that extends RNA primer by adding DNA nucleotides to it Stabilizes single-stranded DNA Relieves over-winding of DNA ahead of the replication fork Removes RNA primers preceding Okazaki fragment and replaces RNA nucleotides with DNA nucleotides Helicase Single-stranded binding proteins Unwinds DNA helix Synthesizes the ends of the linear chromosome Seals nicks between adjacent DNA segments DNA polymerase II [ Choose ] DNA polymerase I [ Choose ] DNA Ligase [ Choose ] Topoisomerase [ Choose ] > >

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter11: Genome Alterations: Mutation And Epigenetics

Section: Chapter Questions

Problem 18QP: Replication involves a period of time during which DNA is particularly susceptible to the...

See similar textbooks

Similar questions

Replication involves a period of time during which DNA is particularly susceptible to the introduction of mutations. If nucleotides can be incorporated into DNA at a rate of 20 nucleotides/second and the human genome contains 3 billion nucleotides, how long will replication take? How is this time reduced so that replication can take place in a few hours?
During DNA replication, the function of RNA primers is to Group of answer choices serve as a binding site for DNA ligase separate the two strands of the double helix to open replication "bubbles" serve as starting points for DNA strand elongation by DNA polymerase in the 3' - 5' direction prevent new-separated strands of DNA from rejoining serve as starting points for DNA strand elongation in the 5' - 3' direction by DNA polymerase
Origin of replication [ Choose ] [Choose] Codon Complementary pairs with cytosine in a DNA molecule The site of protein synthesis Ribozyme This molecule can begin the synthesis of a polymer of nucleotides without a primer A short peice of lagging stand DNA Primase A reflection of redundancy in the genetic code RNA which exhibits enzymatic properties Okazaki Fragment The process of making RNA from DNA Helicase DNA polymerase Transcription Enzyme which lays down a segment of RNA on replicating DNA so that DNA nucleotides can polymerize A sequence of three nucletotides which codes for an amino acid Ribosome Point Mutation Chromosome Wobble Position The point on a stand of DNA where replication begins Mitochondria RNA polymerase [ Choose ] Guanine
The figure below depicts various elements of the eukaryotic replication machinery in action. Enter the name for the protein depicted by each box. Box A Box B Box C Box D Box E Box F DNA polymerase on lagging strand (just finishing an Okazaki fragment) F Maintains polymerase association with DNA Enzyme extends separation of DNA strands Synthesizes RNA fragments that hybridize to DNA Relaxes supercoiled DNA ahead of replication fork Maintains DNA is single stranded state Promotes binding of processivity factors to DNA Newly synthesized strand pocoar Leading-strand template A New Okazaki fragment RNA primer E Lagging-strand template DNA polymerase on leading strand B C D Saaragon - Next Okazaki fragment will start here Parental DNA helix
Define DNA replication/synthesis and semiconservative replication. In addition, describe and/or define the role(s) of each of the following in the process of DNA replication/synthesis: DNA template strand, 5’ and 3’ ends, DNA helicase, DNA polymerase, single-strand binding proteins, topoisomerase, primase, Okazaki fragments, leading strand and lagging strand.
Match each protein involved in DNA replication with its correct function in E. coli. An answer can be used more than once. Group of answer choices The major DNA replicating enzyme on both leading and lagging strands Relieves torsional stress upstream of replication forks Unwinds the double helix at replication forks Provides DNA polymerase III with a 3'-OH group paired with a DNA template Extends lagging strands at the ends of linear chromosomes Digests RNA…
Match the proteins with their function in DNA replication. unwinds DNA at replication fork forms covalent phosphodiester bonds to join DNA fragments remove primer and replace the RNA with DNA, also has 3'-> 5'exonuclease activity for proofreading synthesizes DNA by adding to the 3' end of the growing strand of DNA adds RNA primer uses an RNA template to facilitate extension of the telomeres in eukaryotes helicase DNA ligase DNA polymerase II introduces a double-stranded break ahead of the replication fork and swivels the cleaved ends around the central axis to relieve the stress of helix unwinding DNA polymerase III DNA primase telomerase DNA Gyrase (topoisomerase)
AKS 5b: Which statement is correct regarding the semiconservative nature of DNA? * The semiconservative nature of DNA allows for genetic stability in somatic gene production MRNA operates as a template to allow DNA to replicate itself using ribosomes The structure of the phosphate group on the DNA molecule direct the correct nucleotides into place during replication Nucleotides in each original strand serve as a template for the new strand to be made AKS 5b: Which model accurately represents the semi-conservative nature of DNA replication? * * AA AA AA AA АВ ВА AA BB AA AA АВ АС Figure A Figure B Figure C Figure D
In DNA Replication, what is the function of Primase: works to connect discontinuous parts of DNA such as the nicks created by gyrase and the okazaki fragments O Synthesizes RNA on a DNA template to provide an available 3'-OH group to continue with DNA synthesis O binds at the origin and begins to unwind the helix O bind near the origin to maintain the complementary sequences of DNA from reforming the helical structure
During DNA replication, one of the new strands of DNA is synthesized continuously, while the other is synthesized as a number of separate fragments of DNA that are subsequently linked by DNA ligase. This is because O replication starts at many points on the chromosome RNA primers only anneal to one of the parental strands of DNA one of the parental strands is unwound slower than the other by helicase DNA polymerase III only synthesizes DNA in the 5' - 3' direction
Match the proteins with their function in DNA replication. unwinds DNA at replication fork forms covalent phosphodiester bonds to join DNA fragments remove primer and replace the RNA with DNA, also has 3'-> 5'exonuclease activity for proofreading synthesizes DNA by adding to the 3' end of the growing strand of DNA adds RNA primer uses an RNA template to facilitate extension of the telomeres in eukaryotes introduces a double-stranded break ahead of the replication fork and swivels the cleaved ends around the central axis to relieve the stress of helix unwinding helicase [Choose ] ✓ helicase telomerase DNA polymerase II DNA polymerase I DNA polymerase III DNA primase DNA ligase D DNA Gyrase (topoiso- merase) exonuclease
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