parts of the diagram (labeled A-F) with the corresponding tem t A parental duplex 5' 3' fork progression 5' v A 1.Lagging strand 2. An Okazaki tragment 3.Site of action of DNA topaisomerase - D 4. Leading strand -E 5. Site of action of DNA helicase 6. Site of action of DNA ligase
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- Page 1 of 3 ZOOM DNA Replication_Protein Synthesis_Mutation Assignment *Please type your answers. 1. DNA synthesis and protein synthesis are two processes that are necessary for the cell. Why are these two processes necessary for the cell? How are they connected to each other? wious 4+ 144I. What is the correct order of enzyme action during DNA replication? Number the steps from 1 to 7. HINT: Refer to the slide show and video lecture on this topic to help you solve this one: Synthesis of RNA primers (priming) Ligation II. A double-stranded DNA molecule with the sequence shown below can produce a polypeptide that is four amino acids long. Identify which DNA strands are the coding and the transcribed template strands by circling C or T to the left of the table below, respectively. Use an arrow to indicate the direction of transcription. In the table, show the mRNA sequences and amino acids in this peptide. In spaces to the left and right of the table, label all 5' and 3' ends of all relevant nucleic acid strands. READ CAREFULLY: The table gives you the possibility of filling in answers that show transcription from either strand or in either direction. You are only required to fill in the information relevant to ONE PEPTIDE (no others). Refer to the genetic code on the…vvnicn the following statements are correct about the repair of a DNA duplex containing the sequence below that is grown INE coli (select all that apply)? Strand A Strand B GATCTAGCCGGCATCCGAT CTAGATCGGACGTAGGCTA Methyl ✔A. MutH cleaves Strand A O B. DNA repair will result in the bold A in strand B being replaced with a C O C. DNA repair will result in the bold G in strand A being replaced with a T ✔ D. Defect will not be properly repaired in dam(-) E coli O E. The mammalian repair system would also correct the mismatch shown based on the methylation status of the DNA
- 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…Matching Type Choose the directionality of the given process. (4 points) What is the directionality of the given process? * 4 points 3'-5' 5'-3' Exonuclease activity Complementary strand of the continuous strand Addition of nucleotides going to the replication fork Addition of nucleotides away from the replication fork.. CTGATTCCGAA TG5 ACTIVITY 7.3.1 Given a part of DNA undergoing replication. Copy and write the corresponding bases in the new strands. Put an arrowhead in the appropriate end of each new strand to illustrate the direction of growth. .GACTAAGGCTTAG . CTGATICCGAATGS 5'... NEW STRANDS (Fill in the correct bases and supply arrowheads.)
- Match the enzyme on the left with its role in DNA replication DNA polymerase I helicase DNA ligase DNA polymerase III topoisomerase primase 72 W w# 3 E $ 4 R % 5 T A 6 MacBook Pro Y & 7 U * 8 replaces primers with DNA connects Okazaki fragments to form a continuous strand of DNA synthesizes short RNA fragments used to initiate DNA synthesis Uses the 3'OH of an RNA primer to synthesize the leading strand and Okazaki fragments keeps DNA from getting tangled up ahead of the replication fork "unwinds" the DNA double helix at the origin and replication forks 1 ( 9 X 0 0 P + 11 NextO Off target effects are not really a concern. Question 20 What happens after a double stranded break is induced in the DNA? Select the statement that is FALSE. O HR which will lead to a small indel if template DNA is absent O Microhomology-Mediated End Joining O Non-Homologous End Joining O HR if template DNA is present Question 21 See below for four STR profiles from four different boys, as depicted in an electropherogram. The peak localWrite TRUE or FALSE. If false, write the word/s that make(s) the statement incorrect. 1.The lac operon in eukaryotes contains three genes that code for proteins/enzymes that are used to degrade lactose. 2. Leading strand is synthesized continuously in the 3' → 5' direction toward the replication fork.
- match these replication associated terms with the appropriate definition or function. DNA polymerase primase ligase helicase orgin did i do it correctly?Discuss DNA replication of prokaryotes and please mention all of the enzymes and components listed below. DNA Primase – DNA directed “RNA Pol” which inserts nucleoside triphosphates (NTPs) Primers are oligonucleotides; priming process is the formation of primers DNA Helicase – separates the DNA in advance of the replication fork (in E. coli DNA Helicase II); binds at AT-rich region of DNA; ATP then binds the helicase Single-stranded DNA-binding Protein (SSBP) – no enzymatic activity; does not consume ATP Topoisomerase – alter the supercoiling of double-stranded DNA DNA Ligase – nicking of strands done for replication to continue Okazaki fragments DNA Polymerase – removes primer via 5’ to 3’ exonuclease activity; comes again for 5’ to 3’ polymerization activity (closes the gap between Okazaki fragments) Prokaryotes DNA Pol I – auxiliary enzyme to DNA Pol III; repairs damage; capable of excising pyrimidine dimers; polymerization via single active site that can bind all 4 dNTPs;…Labeling DNA Replication Directions: Drag the lahels from the left tn corrary derti theinats of ar=rlicating strandarA 24 Newly Created Strand of ONA Replication Carke Original DNA Strand Replication Direction of Origin of Replication Directions: Bolow is a more in-depth look at a replication bubble. A.l of the psrts are still tne came, but