What enzyme is responsible for unzipping the DNA during replication?
Q: What is semiconservative replication and how does it work?
A: The process of replication is the formation of a complementary DNA strand from the DNA of the…
Q: In DNA replication, what is the primer composed of and whyare there leading and lagging strands?
A: DNA replication is a biological process that results in formation of exact copies of DNA which is…
Q: What are the functions of the gyrase, primase, and ligase enzymes in DNA replication?
A: Introduction: DNA replication is a process by which two identical DNA molecules are produced from…
Q: What is a replication fork? Why is it important in replication?
A: Replication is the process where the double-helical structure of DNA acts as a template for the…
Q: What role does complementary base pairing play in the replication of DNA?
A: Complementary base pair is a concept where in DNA, adenine(A) always binds to the thymine(T), and…
Q: How many replication forks are formed at the origin of replication?
A: The two strands of DNA separate to form two single strands that act as templates for the process of…
Q: During DNA replication, why doesn’t DNA polymerase move away from the replication fork on both…
A: When the replication of the DNA takes place, an enzyme called helicase begins to unwind the double…
Q: What is IMPORTANCE OF REPLICATION?
A: Step 1 Replication is a necessary feature of genetic material. DNA (deoxyribonucleic acid)…
Q: Why is replication important?
A: REPLICATION - it the process of forming copy.
Q: How is single-stranded DNA protected long enough for replication?
A: DNA replication results in the formation of two identical DNA molecules from a parental DNA…
Q: . Why is DNA synthesis continuous on one strand and discontinuous on the opposite strand?
A: DNA replication is the biological process by which DNA synthesis two identical replicas of itself…
Q: Why does dna polymerase only extend previously existing nucleotides
A: DNA polymerase is an enzyme that synthesizes DNA molecules from deoxyribonucleotides.
Q: Where does is the origin of replication?
A: Replication is a biological process of producing two identical copies of DNA molecule from the one…
Q: Why is DNA gyrase necessary for replication?
A: DNA gyrase is an enzyme of class topoisomerase and subclass of topoisomerase type II. DNA…
Q: What do you mean by Repair of a Collapsed Replication Fork ?
A: The replication fork is a structure that forms within the long helical DNA during DNA replication.…
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: What is the role of TOPOISOMERASES in DNA replication?
A: Topoisomerases (also called polymer topoisomerases) are enzymes that facilitate to wind or unwind…
Q: What are the chemical bonds of the DNA molecule that are broken for the replication process to…
A: DNA replication is a process by which a cell duplicates its DNA before its division. Replication of…
Q: Is the semiconservative replication of DNA perfect?
A: DNA double helix is unwound by helicase, replication occurs on each template.
Q: is replication unidirectional or bidirectional?
A: Replication is the process of synthesis of identical copies of DNA from double stranded DNA…
Q: What separates DNA during replication?
A: Answer. DNA replication is a process that takes place inside the nucleus of the cell. During…
Q: Why is more than one replication fork needed when human DNA is duplicated?
A: The replication of DNA is the process by which copies of DNA are made when a cell divides. During…
Q: why is only one nucleotide added at the time during DNA replication?
A: DNA is the genetic material of almost all living organisms. It contains genetic information which is…
Q: If a bacterial (E. coli) cell has 50,000 bp, how long will be a normal DNA replication?
A: Different macromolecules are present in the body, and they include carbohydrates, proteins, lipids,…
Q: How many DNA repair mechanisms are there?
A: The genetic information of a cell is preserved through a variety of techniques. DNA repair is…
Q: What is the end-replication problem? Why, in the absence of telomerase, do the ends of linear…
A: DNA replication in eukaryotes is semiconservative, semicontinuous, and bidirectional. It occurs in…
Q: In NOT more than 200 words, explain how the double-helical structure of DNA suggests a mechanism for…
A: DNA replication: It is a process of producing two identical replicas of DNA for one original DNA.
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: Why does DNA replication produce two daughter strands that are identical to each other and to the…
A: DNA replication occurs in S phase. DNA replication occurs in 5’ to 3’ direction. DNA replication…
Q: What does autonomous replication mean?
A: DNA is the genetic material that carries genetic material in the form of coded nucleotide sequences.…
Q: What is the dogma for dna replication
A: In molecular biology ,the term central dogma explains the flow of genetic information from DNA to…
Q: Does DNA replication follow the conservative,semiconservative, or dispersive model?
A: DNA or Deoxyribonucleic acid is a two-stranded double helix molecule which has to be perfectly…
Q: What is replication slippage?
A: In molecular biology, DNA replication can be described as the process during which DNA is duplicated…
Q: What is the function of the single strand binding proteins during DNA replication?
A: DNA is the nucleic acids present in the organisms. DNA is the deoxy-ribose nucleic acid in which…
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: Single-stranded regions of DNA are attacked by nucleases in the cell, yet portions of DNA are in a…
A: DNA replication is the process of production of identical copies of the DNA sequences. It is…
Q: What would happen to the replication process if the growing DNA chain did not have a free 3' end?
A: DNA replication is the process by which a double stranded DNA molecule is copied to produce two…
Q: What role do the following enzymes play in DNA replication? DNA polymerase Helicase…
A: DNA replication is the DNA dependent DNA synthesis process. In this process a set of enzyme…
Q: What is the primer in DNA replication?
A: Whenever a cell divides then there is a requirement of DNA replication so that each daughter cell…
Q: Why does the synthesis of one DNA strand lag behind the synthesis of the other strand?
A: DNA is the nucleic acids present in the organisms. DNA is the deoxy ribose nucleic acid in which…
Q: What is the role of RNA primer in DNA replication?
A: When a cell divides, the two new daughter cells must contain the same genetic information, as that…
Q: . Why is DNA replication slightly slower in the lagging strand of DNA than in the leading strand?…
A: Leading strand is the parent strand of DNA which runs in the 3' to 5' direction toward the fork, and…
Q: what is a replication unit?
A: Replication is a process that deals with the genetic material of cell. Genetic material refers to…
Q: What is DNA polymerase?
A: DNA replication is considered as a process, during which template DNA strand is replicated into…
Q: What are semi-conservative DNA replication?
A: The mechanism of DNA replication, which will occur in all cells, is called semi-conservative 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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- What enzyme is responsible for unzipping the DNA during replication? 5' 3' -Template Strands Replication Fork 3' 5' DNA polymerase Okazaki Fragments DNA Ligase Lagging Strand -Leading Strand 3' 5' 3' 5' DNA Helicase DNA Ligase DNA polyermase RNA Polymerase What enzyme is combining two DNA fragmontc togothor?TRANSLATE this RNA sequence: AUGCAAUGA Met-Gln-Stop Met-His-Stop Thr-Glu-Stop Thr-Pro-Stop What would happen if the nitrogen base second to the last of the sequence will undergo a point mutation, (G turning to A) Met-Gin-Stop Met-His-Stop Thr-Glu-Stop Thr-Pro-Stop The DNA sequence ATCAGCGCTGGC is part of a gene. how many amino acids are coded for by this message? O 4 8. 12 20 Option 5 For the lab part: how is DNA used for catching crime suspects. Describe the procedure and cite a particular example where it helped solve a case or absolved an innocent person from any wrongdoing. Your answer O OSingle strand as a template plus 3' end to start DNA synthesis но- Polymerase works, DNA synthesis proceeds OH Template Primer
- Y-shaped region created when helicase unwinds a portion of a chromosome that serves as the growing site for DNA replication. origin of replication dispersive replication model semiconservative replication 0 0 0 0 О QUESTION 5 replication fork conservative replication model An enzyme in DNA replication that breaks the hydrogen bonds between the DNA strands to open up or unwind the DNA so it can be copied. DNA polymerase I helicase telomerase 0000 DNA polymerase III topoisomerase QUESTION 6 0 0 0 0 0 One of several processes by which genetic material in the form of "naked" deoxyribonucleic acid (DNA) is transferred between microbial cells. phosphodiester bond antiparallel strands Chargaff's rules complementary base pairs transformationReplicate the DNA strand AAGGCTAACGGCATTTAACCC. Transcribe the DNA strand AAGGCTAACGGCATTTAACCC. Translate your answer to #16 using the table below. Second letter A G UGU cys UGC UUU PheUCU UCC UCA UCG UAU1 UUC UUA UAC J Tyr Ser UAA Stop UGA Stop A UAG Stop UGG Trp G UUGLEU CAUTHIS CÁC CUU CUC CUA CUG CCU] CCC CCA CCG CGU] CGC Arg Leu Pro CAA GIn CGA CGG. CAGS ACU ACC ACA AAC FAsn AAA AGU Ser AGC AGA LArg Lys AGGJ AUU AAU AUC le A AUA The AUG Mer ACG AAGJ GAU ASP GACJ GUU GCU GCC GCA GCG GGU GGC Gly GUC Val GUA Ala GAAG Glu GAGJ GGA GUG GGG Third letter DUAG JCAG DUAG C. First letterWhat will be the newly synthesized DNA from the template given? DNA Template 3 - CGGATGCCCGTATAC-5 O 3- GCCTACGGGCATATG -5 O 5-GCCTACGGGCATAAG -3 O 5- GCCTACGGGCATATG-3 O3-CGGATGCCCGTATAC -5
- Book rences Label the parts of the DNA replication fork. DNA ligase Leading strand Okazaki fragment DNA polymerase I Open beta clamp RNA primer New bases. W DNA helicase DNA polymerase III New bases Closed beta clamp Parent DNA DNA gyrase Clamp loader 5 of 25 www DNA primase Single-strand binding proteins Next >Complete the complementary stand of the DNA shown Complementary strand стАG GTACT CAC GLabel the figure to assess your knowledge of DNA replication. Drag the appropriate labels to their respective targets Reset] Help Okazaki fragment DNA polymera ase DNA polymerase Nucleotide Leading strand Replication fork Stabilizing proteins Ligase Primase Helicase Lagging strand RNA primer IIIN
- The figure below depicts various elements of the eukaryotic replication machinery in action. Enter the name for the protein depicted by each box. Box A Box B Box C Box D Box E Box F DNA polymerase on lagging strand (just finishing an Okazaki fragment) F Maintains polymerase association with DNA Enzyme extends separation of DNA strands Synthesizes RNA fragments that hybridize to DNA Relaxes supercoiled DNA ahead of replication fork Maintains DNA is single stranded state Promotes binding of processivity factors to DNA Newly synthesized strand pocoar Leading-strand template A New Okazaki fragment RNA primer E Lagging-strand template DNA polymerase on leading strand B C D Saaragon - Next Okazaki fragment will start here Parental DNA helixDNA Replication and Protein Synthesis Review A xxmunt Template strand B Helicase RNA polymerase (DNA) Primase Topoisomerase SSB است DNA polymerase Replication fork -RNA primer DNA polymerase FA Look at the enzyme labeled "A." Which enzyme is this? с -D DNA ligase TÖNKFigure 9.10 You isolate a cell strain in which the joining together of Okazaki fragments is impaired and suspect that a mutation has occurred in an enzyme found at the replication fork. Which enzyme is most likely to be mutated? -Origin of Replication- RNA primer Template srands Leading DNA Svand potymerse Sand Helicase ONA gme DNA RNA Okazaki magment polymerase Figure 9.10 A replication fork is formed by the opening of the origin of replication, and helicase separates the DNA strands. An RNA primer is synthesized, and is elongated by the DNA polymerase. On the leading strand, DNA is synthesized continuously, whereas on the lagging strand, DNA is synthesized in short stretches. The DNA fragments are joined by DNA ligase (not shown).