If a prokaryotic cell experienced a mutation that eliminated DNA polymerase's 3' to 5' exonuclease activity, what part of DNA synthesis would be affected?
Q: DNA polymerases have a shape resembling a right hand with three functional domains. What are the…
A: The enzyme DNA polymerase is in charge of DNA replication. This enzyme's purpose is to split a…
Q: Describe the discontinuous synthesis of the lagging strand in DNA replication.
A: During the process of replication of DNA, each of the parental DNA strands is used as a template.
Q: True or false: After chromosomal replication, Type I topoisomerase is used to coil up the…
A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…
Q: During the process of Initiation in DNA Replication, if one of the initiator proteins is not…
A: DNA replication is the process by which the genome's DNA is duplicated in cells. Before a cell…
Q: Name of a few enzymes involved in DNA replication other than DSNA polymerase and ligase.name the key…
A: Each cell follows central dogma to undergo division and growth. The central dogma has three main…
Q: A mutation occurred in the DNA sequence during replication. Which of the following, A-D, describes…
A: A mutation occurs when the nucleotide sequence of an organism, virus, or extra - chromosomal DNA is…
Q: The palm domain of a DNA polymerase O contains the catalytic site of the enzyme Ograbs the incoming…
A: The majority of organisms' genetic material, deoxy ribonucleic acid (DNA), contains nucleotide…
Q: describe two roles that enzymes play in DNA replication
A: DNA REPLICATION:- It is the process of making two identical daughter copies of DNA from the one…
Q: In one, simple sentence define the function of the following 1. Helicase = 2. Alpha subunit of…
A: DNA helicases are essential during DNA replication because they separate double-stranded DNA into…
Q: Explain why DNA replication is called semiconservative.
A: Genetic material present in nucleus of a cell i.e., DNA contains the instructions for protein…
Q: What will happen to DNA replication if one of its initiation proteins is absent?
A: DNA stands for deoxyribonucleic acid. It is the genetic material of the organisms that transfer from…
Q: Why is it important for DNA to be copied before a cell undergoes mitosis
A: Answer: MITOSIS = It is the process of producing two identical daughter cells from the parent cell…
Q: the human immunodeficiency virus HIV uses RNA rather than DNA to encode genetic information. During…
A: Answer: Introduction: The human immunodeficiency viruses (HIV) are the type of a subgroup of…
Q: Provide a chemical explanation of why DNA synthesis proceeds in a 5'- to-3' direction.
A: The genes are the hereditary unit of an organism which are passed on from the parental generation to…
Q: Draw replication forks that show what you would expect to see if a cell were unable to make the…
A: Replication is the process of synthesis of new DNA strand from the existing ones. The existing DNA…
Q: Within the template strand of the DNA in a gene, the sequence TAT is changed by mutation to TAC.…
A: Gene expression refers to the complex, highly-regulated biological process, which involves the…
Q: The palm domain of a DNA polymerase O contains the catalytic site of the enzyme CIC Site
A: Deoxy ribonucleic acid (DNA) is the genetic material of most organisms that carry coded genetic…
Q: If a cell were damaged, & DNA ligase could no longer be produced, how would replication be affected?
A: Each strand of DNA participates in DNA synthesis due to its double helix structure. DNA synthesis is…
Q: Why are enzymes needed in the process of the DNA replication
A: DNA (deoxyribonucleic acid) was discovered by Friedrich Miescher. Nucleotides are the structural…
Q: The enzyme required to open up the double stranded DNA during replication and form the replication…
A: Replication Replication is a process by which the DNA synthesised exact copies of itself. This is…
Q: Explain why DNA replication proceeds only in the 5′ to 3′direction.
A: DNA replication is the process through which two identical DNA molecules are produced from a…
Q: List and describe the steps in prokaryotic DNA replication. How does this process appear to differ…
A: DNA replication is the process in which the the double helical structure will act as a template for…
Q: Why is it advantageous for DNA synthesis to be more rapid than RNA synthesis?
A: DNA is the macromolecule that possess the information needed for the functioning of the cell. It is…
Q: Describe two ways by which DNA is released from cells.
A: Deoxyribonucleic acid(DNA) is a molecule comprised of two polynucleotide chains coiled around each…
Q: A mutation results in the presence of multiple DNA fragments on the newly synthesized DNA strand…
A: DNA is a double helical structure made of two complimentary strands. The two strands in a double…
Q: Considering prokaryotes, what term adds nucleotides in the 5' to 3' direction during DNA…
A: Ans- During DNA Replication process synthesis of new DNA strands takes place, using parental strands…
Q: After DNA replication, how could cells differentiate between the old and the new strand in case…
A: Mismatch repair is the part of the proofreading system of DNA that involves seven DNA mismatch…
Q: Single-stranded regions of DNA are attacked by nucleasesin the cell, yet portions of DNA are in a…
A: DNA replication is the process of synthesizing new strands of DNA from the original double-helical…
Q: Some of the eukaryotic DNA polymerases have a tendency to make errors in replication. Why would a…
A: DNA polymerase plays a chief role in DNA replication by catalyzing the addition of nucleotides to…
Q: what is the ONLY reason a cell would need to make copies of DNA?
A: DNA is the hereditary material in humans and almost all other organisms. Nearly every cell in a…
Q: In the DNA of what kind of cell must a mutation occur for the genetic change to be passed down to…
A: Mutation is any kind of change in the gene sequence of the DNA which may ultimately affect the…
Q: How would you explain the three steps of DNA transcription
A: RNA strands are formed from the DNA strands by transcription. DNA strand contains the…
Q: From which end of a strand of nucleic acid does DNA polymerase I REMOVE nucleotides? A) 5' B) 3'…
A: DNA polymerase 1 has three types of polymerase activity. 1. 5'-3' polymerase activity- It is…
Q: If ligase was defective in a cell, which strand of DNA Replication do you think would be most…
A: Replication is the process by which each strand of a dsDNA is reproduced into a new strand in the…
Q: Is there any situation in which DNA is made based on a RNA template? If there is, explain with an…
A: DNA is the double helix, which exhibits nucleotide sequences. These are replicated by the daughter…
Q: You have a drug that blocks the activity of Primase during DNA replication. What are the steps in…
A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…
Q: In a single strand of DNA, is it ever possible for the number of adenines to be greater than the…
A: In a DNA molecule purine always pairs with a pyrimidine base. Adenine is a purine base and thymine…
Q: in DNA replication, if the template strand is 5’-ATCCGTGTAACCTT-3’, what is the sequence of the…
A: DNA strand is made up of 4 nitrogenous bases i.e adanine, thymine, guanine & cytosine.
Q: Explain why DNA replication is slightly slower in the lagging strand of DNA than in the leading…
A: DNA replication is slightly slower in the lagging strand of DNA than in the leading strand, the…
Q: During DNA replication,why is it that the entire molecules does not open in one go?
A: DNA replication is the process of making two identical copies of DNA (deoxyribonucleic acid) from…
Q: What is the role of telomerase in DNA replication.
A: Replication is a molecular process in which new DNA molecule is produced from the old DNA molecule…
Q: In eukaryotes, the Replication factor C (RFC) is a clamp loader. In the absence of RFC, what would…
A: The Replication factor C (RFC) is the accessory proteins that's is essential for the processive DNA…
Q: True or false: The synthesis of a new strand of DNA is initiated using a DNA primer?
A: Deoxyribonucleic acid (DNA) stores the cell’s genetic information and is present in the nucleus of…
Q: why is DNA replication is important to humans?
A: In DNA replication, a double-stranded DNA molecule is replicated (by a suite of different proteins)…
Q: DNA polymerase is responsible for everything listed below except
A: DNA polymerase enzymes are enzymes that catalyze the synthesis of DNA molecules from nucleoside…
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: Why does DNA synthesis start with an RNA primer
A: By extending an RNA primer in the 5' to 3' direction, DNA polymerase begins to synthesise a new DNA…
Q: Why is the shape of an enzyme important for its functioning? When does replication occur? Does the…
A: Enzyme are made up of proteins they catalyse the reaction and increase the speed of the reaction by…
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- the human immunodeficiency virus HIV uses RNA rather than DNA to encode genetic information. During infection, however, HIV uses an enzyme known as reverse transcriptase to generate double-stranded DNA. Generally speaking, how would the enzyme generate a double strand of DNA from a single strand of RNA?Considering prokaryotes, what term adds nucleotides in the 5' to 3' direction during DNA replication?in the process of DNA replication, what happens to its products when DNA polymerase 1 is not present?
- To promote genetic diversity in bacteria, it has been found that some species have a genetic mechanism that allows them to increase their mutation rate during DNA replication. A scientist hypothesizes that the functions of the following two enzymes would be impacted by this mechanism. In each case, state if you agree and provide a reason for your answer. i) DNA primase ii) DNA polymerase IIIWhat would be the effect on DNA synthesis if the telomerase enzyme were inactivated?Why is DNA replication is considered a semi-discontinuous process? Explain in detail.
- In eukaryotes, the Replication factor C (RFC) is a clamp loader. In the absence of RFC, what would be the consequences to the outcome of DNA replication? Explain.Describe the discontinuous synthesis of the lagging strand in DNA replication.In DNA replication, the role of topoisomerase is to Question 11 options: a) "unzip" the double stranded DNA in front of DNA polymerase. b) maintain the single stranded DNA. c) supercoil the DNA after the replication fork has passed. d) relieve supercoil tension in the DNA in front of the replication fork.
- Which of the followings statements are true about DNA polymerase? 1.) It can only go in one direction, meaning the lagging strand can't be synthesized continuously. 2.) It cannot start a DNA strand from scratch, so another enzyme is needed to create "primers" as a starting point. 3.) It cannot copy epigenetic marks (such as methyl groups) on its own; these must be "copied" onto the daughter DNA strand by other enzymes after DNA replication. 4.) All of the aboveWhat is the difference between the leading strand and the lagging strand in DNA replication? There are different DNA polymerases involved in elongation of the leading strand and the lagging strand. The leading strand is synthesized continuously in the 5' → 3' direction, while the lagging strand is synthesized discontinuously in the 5' → 3' direction. The leading strand requires an RNA primer, whereas the lagging strand does not. The leading strand is synthesized in the 3' → 5' direction in a discontinuous fashion, while the lagging strand is synthesized in the 5' → 3' direction in a continuous fashion.During the process of Initiation in DNA Replication, if one of the initiator proteins is not present, give specific details on what will happen.