Q: Which of the following statements is true regarding DNA replication? Select all true statements. DA…
A: DNA replication is a process by which two identical copy of DNA is produced from single original DNA…
Q: the leading strand is replicated continuously, while the lagging strand is replicated…
A: On the leading strand, DNA synthesis occurs continuously. On the lagging strand, DNA synthesis…
Q: Which of the following best describes the process of DNA replication? (type 1, 2 or 3 in the blank)…
A: There are a number of processes necessary for the continuation of generation, growth and development…
Q: Which of the following statements is false about DNA replication: a. Enzyme DNA polymerase opens the…
A: The process through which new identical copies of DNA are produced from the double-stranded DNA…
Q: A scientist produces an unusual colony of E. coli, that have a mutation to a gene which alters the…
A: Dna helicases It forms that I was group of enzymes that facilitates the variety of function…
Q: How is the lagging strand different from the leading strand during DNA replication?
A: During DNA replication within each fork of replication, we have two strands. One strand is the…
Q: From among only the following, the THIRD step in DNA replication is Primase produces an RNA primer…
A: Primase creates an RNA primer, which is a brief stretch of complementary nucleic acid that serves as…
Q: THE MECHANISM OF DNA REPLICATION Arthur Kornberg, a Nobel prize winner and other biochemists deduced…
A:
Q: In Figure , which is the leading strand and which is the lagging strand?
A: DNA replication is a process that involves synthesis of new DNA on the pre-existing DNA using it as…
Q: DNA polymerase III sometimes makes a mistake during replication and builds the wrong nucleotide into…
A: Mutations are changes in the DNA sequence that occurs as a result of errors in the DNA copying…
Q: DNA replication begins on a double helix at specific sites, called origins of replication where DNA…
A: DNA replication is the process through which two identical DNA helixes are generated from a single…
Q: Which of the following enzymes is the principal replication enzyme in E. coli?a) DNA polymerase Ib)…
A: E. coli bacteria contains 5 different DNA polymerases: DNA Pol I DNA Pol II DNA Pol III DNA Pol IV,…
Q: THE MECHANISM OF DNA REPLICATION Arthur Kornberg, a Nobel prize winner and other biochemists deduced…
A: The process of DNA replication is critical in ensuring genetic continuity from generation to…
Q: Which of the following are differences between prokaryotic DNA replication and eukaryotic DNA…
A: Replication is the process of producing two daughter identical copies of DNA from one original…
Q: Which of the following is not a feature of eukaryotic DNA replication? a. Replication bubbles move…
A: DNA (deoxyribonucleic acid) is the genetic material of an organism. The specific nucleotide sequence…
Q: DNA is synthesized through a process known as ....... translation semiconservative…
A: At the point when a cell divides, it is vital that every daughter cell gets an indistinguishable…
Q: DNA polymerase is important in the replication process because it can join together segments of DNA…
A: DNA is basically genetic material in all the organism . In Prokaryotes , it is safely stored inside…
Q: Which of the following is Not correct about Okazaki fragments? O they are synthesized by addition of…
A: option 2 is correct because there are two strands in DNA replication.one is leading strand and the…
Q: During DNA replication, the new strand that undergoes continuous replication is called the leading…
A: 1. statement is true. One strand is synthesized continuously in the direction of the replication…
Q: A portion of one strand of DNA has the sequence 5′ AATGGCTTA 3′. If this strand is used as a…
A:
Q: Why is replication called semi-conservative? each new molecule of DNA contains one template…
A: To transfer the genetic information from a parent cell to a daughter cell during reproduction, the…
Q: A total of 16 DNA molecules are produced by how many rounds of replication
A: Introduction Deoxyribonucleic acid is a polymer made of two polynucleotide chains that coil around…
Q: What is difference between the leading and lagging strands in DNA replication? Which? -Okazaki…
A: DNA replication is a process by which DNA is copied. It occurs mainly in S phase of cell cycle.…
Q: On the right of the replication fork, which DNA strand (top or bottom) will be the template for…
A: Okazaki Fragments these are short stretches of DNA produced by a discontinuous synthesis of the…
Q: Which of the following statements about DNA replication is FALSE? ORNA primers play a role in…
A: DNA replication is the synthesis of new copies of DNA and occurs before cell division. It occurs in…
Q: Which of the following steps in DNA replication would occur second? 1.DNA molecule separates into…
A: Replication occurs in three major steps: the opening of the double helix and separation of the DNA…
Q: ch of the following does not occur during DNA replication? t an answer and submit. For keyboard…
A: Ans - c
Q: During semi-conservative DNA replication, which step must occur first? The hydrogen bonds found…
A: The process of formation of two same DNA molecules from an original DNA strand is called DNA…
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Q: Just prior to DNA replication the cytosine in the sequence GTTCATTG is deaminated and it is not…
A: The deamination means removal of the amino group (-NH2) from a particular molecule. In the cell…
Q: Why does DNA have a leading strand and a lagging strand during replication? Select the correct row…
A: Replication is the process of copying the DNA strands. It occurs through a series of events with…
Q: Polymerases work is to add 10 nucleotides to a DNA strand before dissociating. During replication…
A: The compounds known as nucleotides are made up of a nitrogenous base, a phosphate group, and a sugar…
Q: When DNA is copied (replicated), which of the following is NOT true? DNA polymerase adds nucleotides…
A: DNA polymerase binds at the TATAA site on the coding strand to initiate replication.
Q: Below is a figure representing DNA replication. One end of the DNA is labeled; given this…
A: * DNA replication is a process in which double stranded DNA molecule is copied and hence produce…
Q: Describe three (3) effects on DNA replication if DNA polymerase could build DNA in both directions –…
A: DNA is a polymer of nucleotides and is synthesized by the process of replication.
Q: 6
A: Ans: The question is about DNA replication. It is the process of amplifying or doubling the DNA. The…
Q: What is the function of DNA polymerase in DNA replication? to create replication bubbles by…
A:
Q: Which of the following statements is/are TRUE for DNA Replication? Two daughter DNAs are formed,…
A: DNA replication is a process by which 2 copies of DNA are produced from a DNA double helix using…
Q: Which of the following statements about DNA replication in E. coli are correct? 1. It occurs at a…
A: Biological macromolecules are those large molecules that are necessary for the survival and growth…
Q: Which of the following statements best explains the mechanism for DNA replication? DNA replication…
A: Ans-DNA replication is semi-conservative, because each DNA strand serves as a template during…
Q: Match each DNA Replication enzymes on the left with its function I) DNA Ligase II) DNA Polymerase II…
A: Introduction The process by which a double-stranded DNA molecule is copied to produce two identical…
Q: How is bacterial DNA replication different from eukaryotic DNA replication? Multiple Choice…
A: DNA replication is the process by which new DNA is synthesized from the old DNA. In other words it…
Q: Replication 1. The replication origin is identified. 2. DNA primase builds RNA primer. 3. Okazaki…
A: The opening of the double helix and separation of the DNA strands, priming of the template strand,…
Q: Replication Bubbles When all of the bubbles have collided, two new strands of DNA have been made.…
A: DNA replication is the process by which a double stranded DNA molecule is copied to produce two…
Q: Place the following events of DNA replication in order 1. DNA strands separate 2. DNA polymerase…
A: For growth and development of a cell DNA replication is essential which will help to transfer the…
Q: Which of the following statements about polynucleotide formation is correct? As a polymer, DNA is…
A: Polynucleotides The word polynucleotides can be split into two words "poly" which means "many" and…
Q: Which of the following statements is NOT TRUE about genomic DNA replication? OA DNA replication…
A: Biomolecules are organic molecules present in living organisms. There are four main biomolecules.…
Q: Which of the following is not a characteristic of DNA replication? The synthesis of a new DNA strand…
A: DNA replication is the process of synthesis of new strands of DNA from parental strands. The process…
Gene Interactions
When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.
Gene Expression
Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.
Which of the following statements about replication is false?
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The proofreading function of DNA polymerases involves 3’ 5’ exonuclease activity. |
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Origins of replication are rich in G-C |
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A characteristic of aging cells is that telomeres become shorter. |
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The lagging strand is synthesized in the opposite direction as the movement of the replication fork. |
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DNA polymerase is more accurate that RNA polymerase. |
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- 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.Semi-discontinuous replication means that: DNA synthesis only occurs in the same direction as the replication fork. the double helix unwinds and each strand serves as a template for a new DNA molecule. there are Okazaki fragments associated with the leading strand. DNA synthesis occurs in both a 5’ to 3’ and a 3’ to 5’ direction. there is both a leading and a lagging strand associated with each replication fork.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.
- 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 PrimaseWhich 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' onlyMatch 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…
- Place the following steps of DNA replication in order (from left to right) from the beginning to the end of the process. Reset Help priming of DNA synthesis with RNA primer removal of primers by DNA polymerase I exonuclease elongation of RNA primers by DNA polymerase III opening and stabilizing the DNA strands joining of Okazaki fragments by DNA ligase Beginning of replication End of replicationWhich of the following statements regarding the fidelity of DNA replication is true? DNA polymerase has a 3'-5' exonuclease activity that removes incorrectly paired nucleotides. The DNA polymerase active site is highly flexible and can easily 'fit' incorrectly paired incorporated nucleotides. I. DNA polymerase never makes an error in the nucleotide being incorporated. The stability of base pairing is not a factor in controlling the fidelity of nucleotide incorporation during replication. IV. DNA polymerase has evolved to make errors at a relatively high rate because this is what drives evolution. OV.The enzymatic activity of prokaryotic DNA polymerases is faster than that of eukaryotic DNA polymerases, but the overall rate of DNA replication is faster in eukaryotes than prokaryotes. How is this possible? Group of answer choices Prokaryotic but not eukaryotic DNA replication requires a primer. Eukaryotic but not prokaryotic DNA replication proceeds from multiple origins. Prokaryotic DNA replication is a more complex process, with time-consuming polymerase switching that is not needed in eukaryotes. Prokaryotic but not eukaryotic DNA replication proceeds from both 5’ --> 3’ and 3’ --> 5’ Prokaryotic DNA polymerases and not eukaryotic polymerases have proofreading ability.
- What proteins are crucial for creating and maintaining DNA replication forks? Choose the best explanation. Question 2 options: Helicase creates the replication fork; primase keeps the single strands from closing shut. Helicase creates the replication fork; single-strand binding proteins keep the single strands from reuniting. Ligase creates the replication fork; DNA polymerase II keeps the single strands from reuniting. Helicase creates the replication fork; ligase keeps the single strands from closing shut.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.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