What is the function of DNA primase in DNA replication? O to insert new bases during elongation, using the parent strand as a template to anneal (splice) smaller fragments of DNA to create one continuous strand to create an RNA primer to initiate DNA replication to create replication bubbles by unravelling the par

What is the function of DNA primase in DNA replication? O to insert new bases during elongation, using the parent strand as a template to anneal (splice) smaller fragments of DNA to create one continuous strand to create an RNA primer to initiate DNA replication to create replication bubbles by unravelling the par

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 23QP: How does DNA replication occur in a precise manner to ensure that identical genetic information is...

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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.
Match the enzymes involved in DNA replication with their function. Primase [ Choose ] [ Choose] Synthesizes short RNA segment to initiate new DNA strand Helicase 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 Single-stranded binding proteins Unwinds DNA helix Synthesizes the ends of the linear chromosome Seals nicks between adjacent DNA segments DNA polymerase III [ Choose ] DNA polymerasel [ Choose ] DNA Ligase [ Choose ] Topoisomerase [ Choose ]
What is the function of DNA helicase in DNA replication? to create an RNA primer to initiate DNA replication O to insert new bases during elongation, using the parent strand as a template O to anneal (splice) smaller fragments of DNA to create one continuous strand to create replication bubbles by unravelling the parental strands of DNA O all of the above
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
Which protein is needed to lay down a segment of RNA complementary to the DNA before replication can begin? O RNA pelymerase NI O primase O helicase O DNA polymerase lII O topoisomerase
If a mutation occurred that prevented single stranded binding proteins from binding, the result would be: O Replication would not be initiated O DNA would be synthesized on the leading strand, but not the lagging strand Replicating would be initiated, DNA would unwind, RNA primers would be laid down, but DNA polymerase would not bind O The newly synthesized RNA would not be able to leave the DNA template Replication would be initiated, but RNA primers would not anneal to the DNA
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
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.
3-5-8-DNA- DNA helicase- DNA ligose-DNA polymerase-DNA replication origin of replication-primase-RNA-RNA polymerose- single strand binding protein stort codon-stop codon-transcription -transiation to What is the name of this process?1 This process bepins ar a site where the X's e on the DNAColed What is the name for #27 What is the neme for #3? 5 What is #4 made.cf at Which number refers to an Okazaki fracment? What is the number of the enzyme that is eluing toeether Okazaldi fragments"
DNA replication occurs by adding (Note: NTPS = nucleotide triphosphates; dNTPs = deoxynucleotide triphosphates) DNTPS to the 3' end of the template strand NTPS to the 3' end of the daughter strand DNTPS to the 3' end of the daughter strand DNTPS to the 5' end of the template strand NTPS to the 5' end of the daughter strand
DNA polymerases are processive, which means that they remain tightly associated with the template strand while moving rapidly and adding nucleotides to the growing daughter stand. Which piece of the replication machinery accounts for this characteristic? Helicase Sliding Clamp Single Stranded Binding Protein Primase