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Replication Practice: Label the parts of the diagram, write the correct letters in the boxes: DNA Replication CAGAT

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter7: Gene Expression And Control

Section: Chapter Questions

Problem 2VQ

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DNA Replication

Definition Definition Mechanism by which deoxyribonucleic acid (DNA) is capable of producing an exact copy of itself. DNA molecules utilize a semiconservative method for replication. DNA replication is the most essential part of biological inheritance and is crucial for cell division during growth and repair of damaged tissues.

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DNA Replication Drawing Name: Using penci, you will draw a representation of DNA replication along the leading and lagging strands. Follow the directions below, drawing each element in its proper location along the replicating DNA strand. Once you are sure everything is in the correct place, complete your drawing by adding color to distinguish objects as separate. 1. On the diagram below, label the 5 and 3' onds of both parental DNA strands (you can make up which is which) 2 Label the replication fork 3. Draw and label helicase 4. Label the overall direction of DNA replication 5. Draw and label single stranded binding proteins 6. Draw and label the leadng strand 7. Draw and label a single DNA polymerase IIl on the leading strand 8. Draw and label an RNA primer on the leading strand 9. Draw and label a DNA polymerase I on the leading strand 10. On the lagging strand, draw and label at least three Okazaki fragments 11. On the lagging strand. draw and label at least two DNA polymerase IIl…
Picture is only attached as reference. How does the model attached show DNA Replication?What is the importance of DNA Replication?What will happen if there will be an error during the DNA Replication Process?
Please help C. Even in automated sequencing, where you can include all 4 ddNTPs in one reaction, you need to include "normal" dNTPs as well as the ddNTPs - why are these necessary? Why can't you just put in the ddNTPs, since you've got all four of them available to the DNA polymerase?
Fill in the blank spaces below with the most appropriate terms. The word bank is not provided. DNA replication in bacterium Escherichia coli begins at a site in the DNA called At the replication fork, the strand is synthesized continuously while the strand is synthesized discontinuously (in fragments). The new DNA strand, which is synthesized discontinuously, initially consists of short DNA pieces that are called A short RNA primer at the beginning of each of the DNA fragments is synthesized by an enzyme called and this RNA primer is later removed by the enzyme called using its activity. Single-strand breaks (nicks) that are left behind in this process are sealed by the enzyme called A Moving to another question w!l save this resporse Quebon 4 In
Directions: Below is a more in-depth look at a replication bubble. All of the parts are still the same but more detail hes been added. Use the cards to the left to correctly label the bubble below Cards: Replication Fork
DNA replication drawing
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 helix
Match the enzymes involved in DNA replication with their function. Primase [ Choose ] [ Choose] Synthesizes short RNA segment to initiate new DNA strand Helicase Main enzyme that extends RNA primer by adding DNA nucleotides to it Stabilizes single-stranded DNA Relieves over-winding of DNA ahead of the replication fork Removes RNA primers preceding Okazaki fragment and replaces RNA nucleotides with DNA nucleotides Single-stranded binding proteins Unwinds DNA helix Synthesizes the ends of the linear chromosome Seals nicks between adjacent DNA segments DNA polymerase III [ Choose ] DNA polymerasel [ Choose ] DNA Ligase [ Choose ] Topoisomerase [ Choose ]
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Rank from the first to the last steps in DNA synthesis. Reset H DNA polymerase DNA strands separate as the enzyme helicase unwinds them DNA polymerase catalyzes the covalent addition of free nuclectides to the growing new DNA strands The enzyme primase builds ANA primers on the existing DNA strands Two identical doutle helices First Last
Application/ Analysis Explain how the anti-parallel structure of DNA predicts its replication mechanism. Identify the major and minor groove of DNA and explain why they are there. Differentiate between semiconservative, conservative, and dispersive replication. Interpret a diagram of a bi-directional replication fork and correctly determine strand polarity and fork direction.
b. The diagram below is of a short stretch of prokaryotic chromosomal DNA in the process of replication. Please supply the specific pieces of information requested by the boxes below. 1. What enzyme relaxes the supercoils? 2. What enzyme unwinds the DNA? 7. What does this arrow represent? 3. What enzyme synthesizes the RNA primer 8. Why should this single-stranded portion be stabilized? 4. What is this short segment of DNA called? 9. What enzyme synthesizes this long DNA segment? 5. What enzyme removes the RNA primer and replaces it with DNA? 10. Is this the leading or the lagging side? 6. What enzyme joins the short segments of DNA together? 3