12. Shown below are three possible mechanisms for DNA replication. Identify which each kind is (semiconservative, conservative, or dispersive). I Which model is this? (select one) A. Semiconservative Conservative Dispersive Semiconservative Conservative Dispersive Semiconservative Conservative Dispersive B. C. XXX< YOX XXXXX xxxxx XXXXXXX xxx<1000x XXXXXX xx

Q: During DNA replication, both positive and negative supercoiling is introduced in the DNA being…

A: Loosening up of the helix during Deoxyribose Nucleic Acid (DNA) replication (by the activity of…

Q: In Semi conservative replication: A. After one round of replication of a single molecule of DNA, one…

A: Answer  b) After one round of replication of a single molecule of DNA, two resulting DNA molecules…

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: 29. You have purified plasmid DNA and would like to determine its concentration. You mix 10 µL of…

A: Important properties of DNA ae as follows: As DNA is large molecules so it dissolves in water and…

Q: Draw a molecule of DNA undergoing theta replication. On your drawing, identify (a) the origin of…

A: DNA is a double stranded molecule. DNA replication is Semi conservative. This means that each DNA…

Q: What are the answers in number 4 & 5?

A: Nucleic acids are important macromolecules that comprise carbon, hydrogen, oxygen, phosphorus, and…

Q: How many equivalents of ATP are required to replicate a 1000 bp stretch of DNA? B. If the incorrect…

A: Before an answer is given, the process of DNA replication must be understood. First there are two…

Q: 1 MSH2 MSH6 Template strand 5' A 3' Newly synthesized daughter strand MLH1 endonuclease, PMS2 2 DNA…

A: The mismatch excision-repair pathway corrects errors introduced during replication Step 1: A complex…

Q: Successful bacterial DNA replication does NOT … please explain the answer choice  a.ligate DNA…

A: Introduction :- All living things require primers, which are brief, single-stranded nucleic acids,…

Q: You start with a relaxed DNA plasmid that is 1000bp in length. a). What is the starting linking…

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

Q: The general excision repair pathway for DNA repair has the following order   A. endonuclease cuts…

A: When there is an exposure of any mutagens either UV radiation or chemicals, there is the occurrence…

Q: 1: Etoposide is a common chemotherapeutic agent for cancer treatment. Its mode of action involves…

A: During DNA replication the double helical structure of DNA unwinds by using the enzyme helicase. DNA…

Q: 2. Dr. Kim at Research Center performed shotgun Sanger sequencing on an unknown DNA sample, and…

A: In conventional sequencing method, in a reaction mixture,  single-stranded molecules of the DNA,…

Q: 7 a-d. i. ii. Draw the Hydrogen bonds between the base pairs and label the atoms that participate in…

A: There are 2 conventional base pairs in DNA. They are; Between Adenine and Thymine Between Guanine…

Q: can someone explain the picture in simple terms? how does the parp inhibitor work

A: PARP or Poly ADP Ribose Polymerase is a proteinaceous enzyme responsible for repairing damaged DNA…

Q: 4. (2 points) Pseudomonas aeruginosa's circular chromosome is 7.5x106 bp long and the replication…

A: To calculate the time required for Pseudomonas aeruginosa to replicate its genome, we can use the…

Q: To relax a supercoiled DNA, you may use, Select one: O a. DNA topoisomerase I O b. DNA helicase O c.…

A: Ans:- (a) DNA topoisomerase I

Q: III. DOUBLE MATCHING TYPE choose the enzyme/protein/requirement in Column A, and the…

A:

Q: 110.Which of the following best explains the leading daughter DNA strand? A.The gaps within the…

A: DNA Replication:  DNA replication is the biological process of making two identical replicas of DNA…

Q: 1. Complete the structure of this section of a DNA molecule. Label each base (A.I,G,C), sugar (S)…

A:

Q: 23. What process best describes the action of Taq DNA polymerase? a. Catalyzes hydrolysis of…

A: Taq DNA polymerase is the thermal stable DNA polymerase enzyme isolated from Thermus aquaticus. This…

Q: a. What process would be unaffected in with defective topoisomerase? Prokaryotic DNA packaging…

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

Q: Telomeres serve as caps at the ends of linear chromosomes. Which of the following is not true…

A: At the ends of linear chromosomes in eukaryotic cells are vital structures called telomeres.…

Q: Spontaneous oxidative deamination of guanine produces the base xanthine (see figure, which also…

A: As per the Watson-Crick model of the DNA double helix:DNA is made up of two strands of…

Q: What is true of this figure? (can be multiple answers) a. the replication fork is asymmetrical b.…

A: DNA is the genetic material of an organism. DNA replication is a process in which two DNA molecules…

Q: u transfer 0.2 ml of DNA solution from Tube A and place it into Tube B. How much total s present in…

A: C1V1=C2V2 is used to calculate an unknown quantity where two solutions/mixtures are proportional.…

Q: Acts at oric to initiate DNA replication by denaturing dsDNA Choose... Counteracts topological…

A: DNA replication is a complex process which involves replicating another strand of DNA according to…

Q: Sources of mutations exercise Match the mutational source type to the most likely description below.…

A: This question based on mutation sources. A mutation is the changes of one or more gene that may…

Q: Consider the following segment of DNA, which is part of a linear chromosome: LEFT…

A: DNA replication is the process by which the DNA is copied in the cell to make up more number of DNA…

Q: DNA replication Transcription Polymerase moves along DNA template from 5' to 3' or 3' to 5? What is…

A: Central dogma, is  a process by which genetic information is being transferred from DNA to protein…

Q: Which of the following statement about the DNA double helix is correct А. Sugar-phosphate backbone…

A: DNA is composed of nucleotides attached together via phosphodiester bonds. DNA is known as…

Q: The template (antisense) strands of two complete (double-stranded) DNA molecules have the base…

A: Here we are to consider two double stranded DNA (dsDNA)molecules. The 3'5' DNA sequence (i.e. termed…

Q: Below is a generalized figure of replicating DNA. Describe what is occurring for each figure.

A: DNA replication is the process of new DNA synthesis from the old DNA molecule that occurs within the…

Q: Describe or explain how the presence of a thymine dimer in DNA being used as the template strand…

A: The mutation is the sudden deleterious effects in the DNA sequences, they can arise when the DNA is…

Q: 5) Both DNA polymerase (any DNA polymerase) and ligase catalyze the formation of a bond between…

A: DNA Polymerase and Ligase are the two classes of enzymes that take part in DNA replication and…

Q: There are several factors that contribute to high fidelity of DNA replication. Which of the…

A: To preserve genetic integrity and to ensure genetic continuity, DNA that is transferred to daughter…

Q: 10) Determine bending rigidity of double stranded DNA molecule with persistence length of 45 nm (80%…

A: Deoxyribonucleic acid (DNA) is a double stranded polynucleotide coiled around a central axis to form…

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: What is a true statement about the leading and lagging strands during DNA synthesis? The leading…

A: Ans : Correct statement for the above question is - The lagging strand is created due to DNA…

Q: 8. Consider a relaxed, covalently-closed circular DNA plasmid that has 2080 base pairs with Wr = 0.…

A: The scenario introduces an intercalator molecule. Intercalators are molecules that may insert…

Q: 2b) Suppose you generated a mutant E. coli strain in which it was DNA Polymerase I that was…

A: "DNA polymerases are enzymes that catalyse DNA synthesis during replication." The primary function…

Q: Consider the proteins involved in DNA replication. A. What can a regular DNA polymerase do? Choose…

A: DNA  It is a double helical structure present in the nucleus and carry genetic information.

Q: Which of the following DNA repair pathways repair DNA double strand breakage that only occur in…

A: DNA repair is a method by which a cell maintains its genetic code in its original and unaltered…

Q: Answer the following questions about Extraction of DNA A. (3) types of DNA B. Reagents needed to…

A: Nucleic acids are macromolecules or biopolymers made up of monomers called nucleotides.…

Q: Identify the Process structures. 1. 3. 4. End result Copyright© McDougal LittelVHoughton Mifflin…

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

Q: All of the following contribute to a low mutation rate EXCEPT a. high fidelity of DNA polymerase…

A: A mutation is a change in the DNA sequence of a gene, chromosome, or entire genome. This can result…

Q: Mutation of subunit epsilon (ɛ) of DNA polymerase II will result in an E. coli strain that has a…

A: Question -Mutation of subunit epsilon (ε ) of DNA polymerase lll will result in an E. coli strain…

Q: A.) Deletion mutation is a loss of a single base by damage. B.) Point mutation is when a nucleotide…

A: "Since you have asked multiple question, we will solve the first question for you. If you want any…

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.