Which of the following mechanisms is involved in double-strand DNA repair? a. Homology-dependent repair b. Nonhomologous end joining c. Mismatch repair d. A and B e. A, 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: Which of the following is not an example of a  point mutation? a. nonsense b. sense c. antisense…

A: Mutation is a molecular process that occurs spontaneously as well as by the effect of mutagens. It…

Q: Which of the following statements are correct about telomeres (select all that apply)? A. A total of…

A: Cancer is a broad cluster of diseases that is distinguished by the uncontrolled proliferation and…

Q: Individuals with Turner’s syndrome inherit what chromosomes? a. XX b. XO c. XXY d. XXX   What is the…

A: Genetic disorders are those which can be inherited. These disorders are the results of changes in…

Q: The BRCA genes produce DNA repair proteins. Genetic testing is available that can determine if a…

A: BRCA1 (BReast CAncer gene 1) and BRCA2 (BReast CAncer gene 2) are proteins that aid in the repair of…

Q: Define the following terms:a. hypochromic effectb. DNA denaturationc. restriction endonucleasesd.…

A: Recombinant DNA is made by combining two or more DNA from other sources. The process depends on the…

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: List the steps in the correct order of DNA mismatch repair in E. coli

A: The DNA mismatch repair process involves the correction of errors in the newly synthesized DNA. The…

Q: Which type of mutation involves only one base pair? a. insertion b. deletion c. inversion d.…

A: A mutation occurs when DNA molecules are copied or replicated, resulting in DNA variants that can be…

Q: Which of the following is not a DNA sequence? a. TAG b. AUGAUUCT d. AAAAAAAAAA e. CGG

A: DNA is also called deoxyribonucleic acid. DNA acts as genetic material for almost every organism…

Q: Which of the following is FALSE about DNA methylation? O a. the base to be methylated is found in…

A: The CpG sites or CG sites are regions of DNA where a cytosine nucleotide is followed by the guanine…

Q: When DNA polymerase is replicating chromosomes, it often encounters regions with repetitive DNA,…

A: DNA polymerase is an enzyme that helps to create new DNA strands. It does this by copying the…

Q: During DNA replication, short RNA primers are made by the Primase. Why?   a. To provide a 3'-OH so…

A: DNA replication is the process through which cells make copies of the genome's DNA. A cell must…

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: Match the E. coli mismatch repair enzyme on the left with the appropriate function on the right.…

A: DNA mismatch repair (MMR) is a highly conserved biological pathway that plays a key role in…

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

A: Solution : Correct option is d

Q: Which protein or enzyme represents "Single Stranded DNA Binding Proteins"a. A b. B c. C d.

A: DNA replication is an enzymatic process which helps DNA to replicate itself.

Q: Which of the following does not occur during telomerase extension of parental DNA? a. Translocation…

A: Introduction: Telomerase, an enzyme having   RNA template, extends its ends by copying the RNA…

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: The numbered events listed below participate in the generation of junctional diversity. Put them in…

A: Antibodies are the glycoproteins that serve in immune responses.

Q: Which of the following matches is not correct? a. Template = Double stranded DNA b. Primer = short…

A: Introduction DNA is the molecular structure that is composed of a pair of polynucleotide chains and…

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: Hairpins are formed in DNA as a result of a. sequences on the same strand that are inverted and…

A: Intra-molecular base pairing in single stranded DNA or RNA leads to the formation of stem loop…

Q: Which of the following is NOT true of DNA polymerase?   a.  DNA polymerase builds the new strand…

A: DNA polymerase is a type of enzyme found in all living things. Its primary function is to duplicate…

Q: Synthesis of proteins occurs by the process of A. replication B. cytokinesis  C. translation D.…

A: Synthesis of proteins occurs with the help of transfer RNA, messenger RNA and ribosomes. These…

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: DNA Polymerase holoenzymes used for DNA replication recognizes   A. double-stranded sequences as…

A: DNA polymerase III holoenzyme (Pol III HE) is an enzyme that catalyzes elongation of DNA chains…

Q: Which of the following DNA molecules is complementary to the sequence: 5'-ATTGCGTAC-3'? O a.…

A: Structure of DNA and how nucleotide bases pair with each other. DNA, or deoxyribonucleic acid, is…

Q: What kind of mutation normally has no consequence? please explain the answer a.transversions…

A: Any change in the DNA sequence is considered as mutation. It can be large chromosomal aberration or…

Q: According to our class discussions, which of the following is the most correct definition of a…

A: Mutations can occur spontaneously or be induced by mutagens. Mutations can happen in different ways,…

Q: A.) Chemical changes to the DNA caused by mutations can cause hazardous damage to the DNA. B.)…

A: DNA:  DNA is a polymer made up of two polynucleotide chains that coil around each other to form a…

Q: Determine whether each statement is TRUE or FALSE. a. In eukaryotic chromosomes, DNA replication…

A: The heterocatalytic process by which a new DNA stand is synthesized on a old DNA template, is known…

Q: Which of the following is the most likely effect of a mutation in the gene coding for a DNA repair…

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

Q: Which of the following is true? A. The stability of an RNA-DNA hybrid is generally tilted towards…

A: While the fibers in a twisted rope do interact with each other, the stability is attributed to the…

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: Which of the following are strategies used by stem cells to reduce risk of alterations in their…

A: Introduction: Human stem cells are distinctive cells with the potential to distinguish into a wide…

Q: For each statement below indicate whether it is true or false: A. Strand discrimination during the…

A: A In eukaryotes, nicks (single-stranded breaks) that are unique to recently manufactured DNA are…

Q: Define the following terms: a. A-DNA b. B-DNA c. pseudogene d. cruciform e. intron

A: Terms to be defined in this question are as follows: a. A-DNA: A conformation of DNA which differ…

Q: In eukaryotes, RNA primers are primarily removed by a. DNA polymerase I. b. DNA polymerase α. c.…

A: RNA stands for ribonucleic acid and is formed by the process of transcription. Generally, RNAs are…

Q: Which of the following statements is FALSE regarding the molecular mechanism for DNA polymerases?…

A: A DNA polymerase is the member of family of enzymes that catalyze the synthesis of DNA molecules…

Q: What will most likely be the effect of the change in the DNA molecule? *   A. the change will cause…

A: The DNA content of the organism represents the total genetic content and so the total genes present…

Q: A primer is laid down complementary to the DNA sequence TAGCAATCGCA to prime synthesis of a daughter…

A: Answer: Introduction: In living organisms, primers are short strands of RNA or DNA commonly 18-22…

Q: 1. Photoreactivation destroys the covalent bond by using the light energy from the UV light source…

A: Photoreactivation is the mechanism of DNA repair. This is a light-dependent repair mechanism.  It…

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…

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.