Which of the following DNA repair systems may involve the removalof a segment of a DNA strand?a. Direct repairb. Nucleotide excision repairc. Mismatch repaird. Both b and c

Q: In an EMSA, the binding of a protein to DNAa. prevents the DNA from being digested with a…

A: Electrophoretic mobility shift assay (EMSA) is used to identify deoxyribonucleic acid (DNA)-binding…

Q: Indicate whether each of the following statements is true or false. If a statement is false, explain…

A:

Q: Double-strand breaks can be repaired bya. homologous recombination repair (HRR).b. nonhomologous end…

A: DNA (deoxyribonucleic acid) is the hereditary or genetic material present in most of the living…

Q: The enzyme that proofreads the new strand of DNA, looking for and correcting mistakes as it…

A: DNA replication is the process in which the two identical replicas of DNA from one original DNA…

Q: In DNA replication, there are leading and lagging strands because A) DNA replication is…

A: DNA replication is the process by which the genetic material of the cell is doubled which is then…

Q: Which of the following BEST describes DNA replication?  a. Conservative  b. Semiconservative  c.…

A: DNA ( Deoxyribonucleic acid) is two stranded helical structure which act as genetic material in most…

Q: Double-stranded breaks are repaired by: a). direct reversal of DNA damage b). recombinational repair…

A: Ionizing radiation and radio-mimetic compounds induce DNA double-strand breaks (DSBs), but they may…

Q: 4) The laser allows us to: a. Specify the region of DNA damage b. Vary the amount of DNA damage c.…

A: Laser micro-irradiation, along with advanced live-cell microscopy, are used to study cellular and…

Q: utline the four broad classes of chemical damage to DNA.

A: Epigenetic mechanisms are described in detail. Multiple biological processes that affect epigenetic…

Q: ) Base excision repair requires polymerases. B.) In DNA repair by excision, the non-damaged strand…

A: Solution : Correct option is d

Q: The flask where you grow the E. coli culture got exposed to UV rays, explain what kind of DNA damage…

A: In order to maintain the integrity of information contained in DNA, it has various repair…

Q: Which of the following mechanisms can cause gene conversion?a. DNA mismatch repairb. DNA gap…

A: Gene is the primary unit of heredity for all living organisms. This is transferred through…

Q: Which of the following is false regarding DNA repair mechanisms? DNA ligase is needed to establish…

A: DNA repair is a process by which a cell identifies and corrects damage to the DNA molecules. Most…

Q: Negative supercoiling may enhance activities like transcriptionand DNA replication because ita.…

A: DNA (deoxyribonucleic acid) supercoiling is the coiling of double helix upon itself. If the ends of…

Q: Enzymes or proteins involved in DNA repair include a. RAD52 b. RuvA c. UvrA d. MAPK

A: DNA repair is considered as a process in which any kind of damages is eliminated out.

Q: The model that correctly describes the process of DNA replication is thea. conservative model.b.…

A: BASIC INFORMATION  DNA It stands for deoxyribo nucleic acid.  It is the genetic material of all…

Q: List the general features of DNA repair systems

A: DNA can be defined as the type of hereditary material which is common in humans. It is a nucleic…

Q: The process of DNA replication is affected by an enzyme known as: (a) Mutase (b) Ligase (c)…

A: The process of replicating a double-stranded DNA molecule into two identical DNA molecules is known…

Q: One of the mechanisms that leads to the DNA mutations is a process known as DNA polymerase slippage…

A: DNA slippage is a type of DNA strand misfiring mechanism that occurs in the repeated nitrogenous…

Q: Eukaryotes such as humans have linear chromosomes. In order to signal the end of DNA replication,…

A: DNA replication is a process by which two identical copies of DNA are made. It is completed in 3…

Q: . Which type of DNA repair is defective in severe combined immunodeficiency disease (SCID)?…

A: When there is defect in DNA damage repair , it leads to various human diseases .

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: When DNA replication begins,_______ . a. the two DNA strands unwind from each other b. the two DNA…

A: DNA replication is a process by which DNA makes copies of itself and this process requires lots of…

Q: Which of the following Is true of the leading strand? A it is synthesized discontinuously at the…

A: Leading strand is synthesized continuously and lagging strand is synthesized discontinuously. Both…

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: 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: How can reverse transcriptase inhibitors slow the replication of DNA? Give an example that lay…

A: Reverse transcriptase is an enzyme that is used to form complementary DNA (cDNA) from an RNA…

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: Which of the following is not a DNA repair mechanism?

A: DNA repair is a set of procedures through which a cell detects and repairs damage to the DNA…

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: Which of the following is NOT common to all repair mechanisms? A. Detection of the lesion B. Removal…

A: A change in the fundamental structure of DNA that is not reproduced when the DNA is replicated is…

Q: . Which of the following statements best describe the mismatch repair pathway?a. It is part of the…

A: DNA polymerases include a group of enzymes that are responsible for the synthesis of DNA during DNA…

Q: DNA polymerases that corrects errors and mismatches in DNA is called?   A. Post replication repair…

A: Although DNA replication is an extremely exact process, errors can occasionally happen, such as when…

Q: The DNA polymerase involved in base excision repair isa) DNA polymerase αb) DNA polymerase βc) DNA…

A: DNA polymerase is an enzyme that synthesizes DNA molecules from deoxyribonucleotides, the building…

Q: Compare and contrast nucleotide excision repair and base excision repair. Diagram both very…

A: Base excision repair is caused due to hydrolysis it causes spontaneous depurination or…

Q: The initial mechanism for repairing nucleotide errors in DNA is ________. a. mismatch repair b. DNA…

A: The biochemical molecule that is built up with two polynucleotide chains is called DNA…

Q: Which of the following is true of reverse transcriptase?a. It is required for the movement of DNA…

A: The enzyme engaged in reverse transcription is reverse transcriptase. The enzyme works through using…

Q: List at least three different types of DNA repair and briefly explain how each is carried out.

A: Deoxyribonucleic acid (DNA) repair is a biological that involves repairing damaged DNA sequence due…

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: A. Changes and damages to the DNA is permanent and has no remedy. B. Damage to the DNA can be…

A: DNA or Deoxyribonucleic acid, is the hereditary material that composed of two polynucleotide chain…

Q: Defects in the excision  repair process may result in : A. Mutations B. Okazaki fragments C.…

A: Excision repair refers to a cellular mechanism in which the damaged DNA is repaired during the cell…

Q: Nucleotide excision repair   A. recognizes and repairs thymine dimers and other damaged bases in…

A: It is an important excision mechanism that removes DNA damage induced by ultraviolet light.

Q: Which of the following statements describe reversal of DNA repair mechanism. A. UV light blocks the…

A: Solution : correct option is C

Q: DNA ligases will seal all nicks there are in the DNA strands during the replication process and in…

A: DNA nicks introduced during the process of replication, recombination or repair if left unchecked,…

Q: Compare and contrast the different types of DNA repair mechanisms.

A: The technique by which double-stranded deoxyribonucleic acid (DNA) is duplicated and two clones are…

Q: DNA replication is carried out by a ________ enzyme. a. Helicase b. Polymerase c. Kinase d.…

A: Introduction :- Before cells can divide, their DNA must be replicated. This ensures that each…

Q: DNA Repair Systems a. counteract spontaneous and induced mutations b. counteract induced mutations…

A: DNA repair may be classified as a collection of systems that detect and repair damage to DNA…

Q: In eukaryotes, DNA replication is initiated at an origin of replication by a. DnaA proteins. b. the…

A: Eukaryotes are modern day organisms with a nucleus and cell organelles that are bounded by…

Q: Double-strand breaks can be repaired bya. homologous recombination repair (HRR).b. nonhomologous end…

A: Double-strand DNA break (DSB) occurs or arises when both strands of the DNA duplex are severed,…

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.