Which of the following DNA repair mechanisms involves the 3' to 5' exonuciease function of DNA polymerase? mismatch repair O postreplication repair O SoS response O DNA proofreading O base excision repair

Q: Which type of DNA damage can be addressed by non-homologous end joining? O Pyrimidine dimers O…

A: Non homologous end joining is a repair pathway for double stranded breaks in DNA.  It is called…

Q: Which DNA repair mechanism is described? In E. coli, MutH recognizes the correct template through…

A: DNA repair, or any of the several ways in which a cell maintains the integrity of its genetic code.…

Q: Sticky ends are single stranded DNA overhangs that: O stabilize DNA from nucleases O form primers…

A: DNA ligases join DNA molecules together by synthesizing phosphodiester bonds between nucleotides…

Q: The palm domain of a DNA polymerase contains the catalytic site of the enzy Ograbs the incoming…

A: Introduction Humans and nearly all other species carry their genetic information in DNA…

Q: Which of the following DNA repair systems may involve the removalof a segment of a DNA strand?a.…

A: Answer is b.)  Nucleotide excision repair.

Q: DNA replication AND repair both finish with the action of Primase DNA polymerase l DNA polymerase II…

A: Primase- Primase is an enzyme that produces primers, which are short RNA sequences. Primase works by…

Q: Which of the following is considered to be a spontaneous source of mutations that impa the genome? O…

A: The genome is the finished arrangement of hereditary information in a organic entity. It gives all…

Q: Which of the following enzymes in E. coli synthesizes new DNA at sites of DNA damage during base…

A: The DNA repairing by the base excision repair and the nucleotide excision repair is done by the…

Q: Which of the following statements is FALSE? O The lagging strand of DNA is started by an RNA primer.…

A: The correct answer is (c), this statement is false The DNA replication in bacteria occurs…

Q: Which replication enzyme(s) is/are responsible for synthesizing new DNA components: A) Ligase B)…

A: In molecular biology, the biological method of creating two identical DNA replicas from one initial…

Q: DNA polymerase is the enzyme that synthesizes new DNA during DNA replication. DNA polymerase…

A: DNA polymerase is an enzyme that is responsible for DNA synthesis.

Q: The important excision mechanism that repair DNA damage induced by UV light are called Base excision…

A: The above given  statement is false . It is not known as base excision repair .  The statement given…

Q: Which of the following correctly describes a difference between RNA & DNA polymerases? RNA…

A: Transcription is the biological process of copying a segment of DNA into RNA, for example mRNA that…

Q: Cells exposed to ultraviolet light develop thymine dimersand visible light reverses this damage.…

A: Irradiation by the UV light causes pyrimidine dimers. The most common pyrimidine dimers formation is…

Q: Optimal DNA replication requires the coordinated effort of all the following EXCEPT: A single strand…

A: Single stranded binding proteins prevent single stranded DNA from exonuclease activity during…

Q: copy of a molecule of DNA. In this process, the joining of nucleotides to extend a new strand of DNA…

A: DNA replication is a process in which DNA makes its daughter stand by making a copy of the original…

Q: Chemical agents that intercalate between nucleotide bases typically can lead to what types of errors…

A: A mutation is alteration in the sequence of DNA which can be due to external factors or can also be…

Q: Which of the following double stranded DNA molecules would require the most amount of energy to…

A: DNA( deoxyribonucleic acid) is the double-stranded molecule that is the genetic material in most…

Q: Ultraviolet light principally causes which of the following dmages to DNA? A methylation of specific…

A: UV light can kill cells by damaging DNA to an irreversible extent. The light initiates reaction…

Q: What is a limiting factor on the rate of DNA replication? the number of nucleotides within a gene O…

A: DNA replication is the process in which the genetic material of the cell is copied before the cell…

Q: During elongation, which of the following is NOT required in the continuous replication of DNA? O…

A: DNA replication is the process of producing daughter DNA from the parental DNA.

Q: which of the following is true for methyl directed repair O A. methyl directed repair cannot…

A: DNA replication is a long process that is done at considerable speed and hence, in spite of being a…

Q: Which of the following would be involved in the excision repair of a thymine dimer? O DNA polymerase…

A: DNA is the nucleic acids present in the organisms. DNA is the deoxy ribose nucleic acid in which…

Q: What is the first line of defense among all the various DNA repair processes? cleavage of glycosidic…

A: DNA repair is the process, which helps to prevent the damage present in the DNA strands due to any…

Q: All of the following are involved in DNA replication excepta) polysome.    b) gyrase.        c)…

A: DNA is the genetic and hereditary material in all living organisms. When a cell divides, DNA is…

Q: What is/are the attributes that make nucleotide excision repair (NER) and base excision repair (BER)…

A: Deoxyribonucleic acid (DNA) is a hereditary molecule that passes genetic information from one…

Q: Primase has the important role of removing the RNA primers and filling the gaps with new DNA…

A: DNA replication There are number of processes necessary for the continuation of generation, growth…

Q: Which of the following DNA repair systems may involve the removalof a segment of a DNA strand?a.…

A: Deoxyribonucleic acid (DNA) is a genetic material of most organisms. DNA contains the instructions…

Q: What repair system will have an issue functioning properly if DNA glycosylase loses its function?…

A: DNA repair is a process of repairing the spontaneous changes arising in the DNA. The genome…

Q: What type of enzyme would MOST likely promote increased gene expression? O a. DNA ligase Ob.DNA…

A: Promotion of gene expression means increased transcription or protein formation of a particular…

Q: Which repair process(es) use(s) a DNA polymerase? Select all that apply. base excision repair…

A: DNA polymerases are the enzyme required for the synthesis and replication of DNA. There are…

Q: Which of the following DNA répair pröčēsses is khowh to Be (1.e. Iing Mark all the answers that are…

A: The SOS response was the first DNA repair system described in Escherichia coli induced upon…

Q: All of the following are critical factors for DNA replication of the leading strand? Check all that…

A: DNA replication is the process by which new DNA is synthesized from the old DNA by the…

Q: Why is an RNA primer necessary for DNA replication a. The RNA primer is necessary for the activity…

A: DNA Replication: It is a process by which DNA makes a copy of itself during cell division. The…

Q: Which of the enzymes from the following list wouldyou need to make a recombinant DNA molecule?…

A: The recombinant DNA is where the two or more DNA molecules are integrated into a vector plasmid to…

Q: Why does DNA polymerase require a primase in order to begin DNA replication? O DNA replication…

A: DNA polymerase (DNAP) is defined as the type of enzyme responsible for making new copies of DNA.…

Q: Ultraviolet light causes thymine dimers to form in DNA. Some individuals are genetically incapable…

A: Ultraviolet light causes thymine dimers to form in DNA. Some individuals are genetically incapable…

Q: Which of the following enzymes has the highest functional error?  a) DNA Polymerase I b) DNA…

A: The proofreading activity of enzymes helps in reducing the number of errors. Proofreading activity…

Q: During DNA replication, one of the new strands of DNA is synthesized continuously, while the other…

A: Introduction:- Each of the two parental DNA strands acts as a template for new DNA to be generated…

Q: The following proteins are involved in direct repair mechanisms except O Ada enzyme O Translesion…

A: Direct DNA repair mechanism The DNA is prone to mutations by various external factors. These results…

Q: Which enzyme is used by the bottom daughter strand but not by the top daughter strand? O RNA primase…

A: dna replication is the process by which parent dna makes two daughter strands . the given diagram is…

Q: Guanine was oxidized into 8-oxoguanine, which process below will ensure the integrity of the DNA?…

A: DNA repair system specifies a collection of processes, through which a cell identifies and corrects…

Q: DNA polymerase III has Options O 5 to 3' polymerase activity O 3'-5' exonuclease activity OBoth A…

A: The polymerase enzyme helps in building lengthy polymer or nucleic acid chains.

Q: The SOS response in bacteria is a type of repair that only occurs under extreme conditions when DNA…

A: The SOS response in bacteria, which has been widely investigated in Escherichia coli, is a worldwide…

Q: Which DNA repair mechanism is described? A damaged nucleotide is removed and subsequently repaired…

A: The given repair mechanism is a nucleotide excision repair in which the DNA that is damaged by the…

Q: At which point during DNA replication is genetic lost from the telomeres? Enzymatic action of…

A: Replication is the process of making two identical DNA molecules from a double-stranded DNA…

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: During DNA replication a point mutation occurred in the bacterial genome and is now being repaired.…

A: DNA( deoxyribonucleic acid) is the double-stranded molecule that is the genetic material in most…

Q: Which of the following enzymes is the main replication enzyme in prokaryotes? 1. DNA polymerase l 2.…

A: Biological macromolecules are those large molecules that are necessary for the survival and growth…

Tissue regeneration & repair

Tissue regeneration involves the restoration of tissue components by regrowth of damaged tissues. In contrast, tissue repair involves patching of injured tissue rather than restoring it. It is the proliferative capacity of the cells that decides the amount of regeneration against the repair that would occur in the tissue. Both regeneration and repair depending on the duration of the injury and response to the inflammation.