Which of the following DNA repair systems may involve the removalof a segment of a DNA strand?a. Base excision repairb. Nucleotide excision repairc. Mismatch repaird. All of the above

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: 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: Which of the following is NOT correct regarding DNA and RNA synthesis? Select one: a. The overall…

A: Replication is the process by which, DNA is copied. Where transcription is the process by which DNA…

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: Which of the following mechanisms will remove uracil and incorporate the correct base?a) Direct…

A: The spontaneous changes in the DNA must be repaired to avoid mutations. The changes are repaired to…

Q: Which of the following is not a factor that increases mutations?   A. replication errors   B.…

A: A mutation is a variation that happens in the DNA chain, due to errors during the DNA is duplicated…

Q: DNA gyrasea. promotes negative supercoiling.b. relaxes positive supercoils.c. cuts DNA strands as…

A: Deoxyribonucleic acid (DNA) replication is the biological process of producing two identical…

Q: List mechanisms by which cells can repair DNA withaltered or damaged nucleotides.

A: The errors that occur in different cell processes are corrected by a set of damage repair mechanisms…

Q: Which of the following statements is accurate for DNA replication in your cells, but not PCR? a.…

A: BASIC INFORMATION ABOUT GENETIC MATERIAL  DNA It stands for deoxyribo nucleic acid.  It is the…

Q: Restriction enzymes found in bacterial cells are ordinarily useda. during DNA replication.b. to…

A: Introduction  Enzymes plays a vital role in controlling various cellular activities. There are…

Q: Which of the following is part of the elongation step of DNA synthesis?a. pulling apart the two DNA…

A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…

Q: Mutation rates are typically low due toa. proofreading by DNA polymerase.b. DNA repair enzymes.c.…

A: BASIC INFORMATION  MUTATION  It is sudden or discontinuous variation These changes occurs in the…

Q: For each DNA repair process in column I, list all characteristics from column II that correctly…

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for…

Q: Which of the following is true about DNA polymerase?a) It can synthesize DNA in the 5’ to 3’…

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

Q: In nucleotide excision repair in E. coli, the function of the UvrA/UvrB complex is toa. detect DNA…

A: Deoxyribonucleic acid (DNA) is a double-stranded molecule. DNA replication is the process by which…

Q: A nucleotide sequence in a segment of a DNA information strand is given here. Sketch (A) the…

A:

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: The anchor used to start a new DNA strand is called a ________.   a. trigger   b. first   c. starter

A: The process of formation of new DNA is called DNA replication.  DNA is complex structure and cannot…

Q: Which of the following has the self-repairing mechanisms?a) DNA and RNAb) DNA, RNA and proteinc)…

A: Cells and tissues have the ability to repair or heal themselves. When the cells are damaged, new…

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: To make a new DNA strand, which of the following is necessary? a. A template strand c. Heavy…

A: The separating process of strands of the double helix would provide two templates for the synthesis…

Q: Below is a template strand (top) being replicated by DNA polymerase.   The black arrow is pointing…

A: DNA is the genetic material of almost all living organisms. It contains the information that is…

Q: E) double stranded DNA separates into single stranded DNA

A: The correct option is E . Double stranded DNA separates into Single stranded DNA .

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: ררד חויתוידורידיד" The above image shows DNA during replication. The new DNA strand build using the…

A: Replication typically begins at a specific point on a dna sequence known as the replication origin.…

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 mechanism requires the ability to distinguish between newly synthesized and template strands…

A: DNA is the double stranded structure in which genes are located. Usually it functions as genetic…

Q: Which of the following items do not affect the melting temperature of DNA? A length of the DNA B the…

A: Melting temperature ( Tm): half of DNA gets denatured (melts). Tm = 2* (A+T) + 4* (G+C)

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 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 of the following natural cellular process does PCR use to amplify a target DNA? O A. Gene…

A: Introduction :  Polymerase Chain Reaction or PCR is a technique used in molecular biology to make…

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: Explain the differences in between base excision repair and nucleotide excision repair.

A: Definition- Base Excision Repair- it is cellular mechanism,which repairs damaged DNA by removing…

Q: The phrase “5 prime to 3 prime” refers to the_______ . a. timing of DNA replication b.…

A: The process by which DNA replicates to generate two daughter DNA strands that are identical to the…

Q: The complementarity of DNA strands is based on a. the chemical properties of a phosphodiester…

A: The types of nucleotide bases of the genetic material are the same in all the species present on…

Q: is the name of the protein that unwinds double stranded DNA e is the term used to refer to newly…

A:

Q: Following a CRISPR mediated DNA double-strand break, how can the DNA be repaired by the cell? Choose…

A: Answer. CRISPR is clustered regularly interspaced short palindromic repeats. These are DNA sequences…

Q: Which of the following is not required for Sanger sequencing of DNA? OA. ddNTPs B. DNTPS C. A DNA…

A: Sanger sequencing is a method of DNA sequencing.It involves selective incorporation of chain…

Q: Which of the following statements are true about DNA polymerase? Select all that apply. O On the…

A: Polymerases are enzymes that catalyze the synthesis of DNA or RNA polymerase whose sequence is…

Q: Which of the following is not essential to carry out the polymerasechain reaction?a. primers b. DNA…

A: PCR is the polymerase chain reaction and is used to make various copies of a specific region of DNA…

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: During horizontal gene transfer, all of the following can be transferred EXCEPT (which statement…

A: Horizontal gene transfer is a process in which an organism transfers genetic material to another…

Q: DNA polymerase III requires a(n)__________ for synthesis of DNA to occur  A- DNA template  B-RNA…

A: DNA polymerase III binds with the primers on the leading and lagging strand and synthesize new DNA…

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 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: 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.