Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Chapter 13.2, Problem 2CC
Make a table listing the functions of seven proteins involved in
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Below is a diagram of DNA replication as currently believed to occur in E. coli. Arrows start from numbers and end at specific points. Answer the questions relating to the locations specified by the numbers
(1) Which end (5' or 3') of the molecule is here?
(2) Which enzyme is probably functioning here to deal with supercoils in the DNA?
(3) Which enzyme is probably functioning here to unwind the DNA?
Considering prokaryotes, what term adds nucleotides in the 5' to 3' direction during DNA replication?
if you have the following sequence of DNA 5' ATTGCGGAGCCTCGAT 3' do the following:
Chapter 13 Solutions
Campbell Biology in Focus
Ch. 13.1 - Given a polynucleotide sequence such as GAATTC,...Ch. 13.1 - Prob. 2CCCh. 13.2 - What role does base pairing play in the...Ch. 13.2 - Make a table listing the functions of seven...Ch. 13.2 - MAKE CONNECTIONS What is the relationship between...Ch. 13.3 - Describe the structure of a nucleosome, the basic...Ch. 13.3 - What two properties, one structural and one...Ch. 13.4 - Prob. 1CCCh. 13.4 - DRAW IT One strand of a DNA molecule has the...Ch. 13.4 - Describe the role of complementary base pairing...
Ch. 13 - In his work with pneumonia-causing bacteria and...Ch. 13 - Prob. 2TYUCh. 13 - In analyzing the number of different bases in a...Ch. 13 - The elongation of the leading strand during DNA...Ch. 13 - Prob. 5TYUCh. 13 - Prob. 6TYUCh. 13 - Prob. 7TYUCh. 13 - Prob. 8TYUCh. 13 - Prob. 9TYUCh. 13 - MAKE CONNECTIONS Although the proteins that cause...Ch. 13 - Prob. 11TYUCh. 13 - FOCUS ON EVOLUTION Some bacteria may be able to...Ch. 13 - FOCUS ON ORGANIZATION The continuity of life is...Ch. 13 - Prob. 14TYU
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- Use the first picture for to answer the following questions.arrow_forwardExplain the following statement : a) initiation of bacteriall DNA replication is an energy requiring process b) bacterial DNA polymerase can enter the termination sequence but cannot exisarrow_forwardBelow is a diagram of DNA replication as currently believed to occur in E. coli. From specific points, arrows are provided that lead to numbers. Answer the questions below relating to the locations specified by the numbers. (02) What end (5’ or 3’) of the molecule is here? (State which) What enzyme is probably functioning here to deal with supercoils in the DNA? What enzyme is probably functioning here to unwind the DNA? What nucleic acid is probably depicted here? What are these short DNA fragments usually called? What enzyme probably functions here to couple these two newly synthesized fragments of DNA? Is this strand the leading or lagging strand? What end (5’ or 3’) of the molecule is here? (State which)arrow_forward
- 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.arrow_forwardThe sequence below shows the ends of one strand of a linear chromosome, with slashes representing the middle part, which is not shown. During replication of this one strand, on which side of the slashes will Okazaki fragments be made in the newly synthesized strand? 5' AGCCGTACGGTTATCTCCTAG //// GGGCCTATTGTGACCAGTGAGTCG 3' a) Both sides b) Neither side c) The right side d) The left sidearrow_forwardHelicases are crucial to many of the molecular biological processes we have learned about in this class. Briefly (2-3 sentences max), describe what a helicase does and give 2 examples of different processes (replication, repair, transcription, and translation) that helicases are involved in what it does in each process. A) What does a helicase do? B) Example 1 C) Example 2arrow_forward
- Assume the following DNA template strand: 3'-ATA GCG AGG AGT ATC-5' A) What would be the protein associated with this DNA template strand? Give the sequence of amino acids encoded by this fragment. Leave traces of your steps. B) In the synthesis of this protein, what are the codon and the anticodon for? Explain in one sentence for each. C) We find, in another cell, a mutation of this DNA template strand: 3' ATA GCG TGG AGT ATC-5’ 1. What type of point mutation is it? 2. Did this mutation arise during transcription, translation or DNA replication? D) If this mutation is found in a spermatozoon, will it have an effect on the individual, its offspring or both? Briefly explainarrow_forwardYou are studying a colony of cells and determine that some of these cells have a mutated DNA polymerase I that results in loss of function of this enzyme. A) What will the effect of the mutation in DNA polymerase I be on DNA replication? In your answer make sure to describe what would be observed in the leading and lagging strand and explain your reasoning. B) Will this mutation in DNA polymerase I have an impact on another step in DNA replication? In your answer make sure to indicate whether DNA replication will be impacted or not. If it is not, explain why. If it is impacted, then describe the step that is impacted and name the molecule or enzyme involved.arrow_forwardIn the diagram of DNA at the right: a) fill in the letters representing the bases on the right-hand strand. b) How many nucleotides are shown? 6 c) Explain why these two strands are described as "anti-parallel." because two stands in apposite directions d) If the DNA strand on the left is the coding strand, what mRNA sequence would be transcribed from it? ACG e) What amino acid would that mRNA strand code for? (read the letters from top to bottom) (The) threonine 2' 1' 2 AT बबब GH Carrow_forward
- a) How is the lagging strand made in DNA replication? Include important enzymes and structures. How is this different from the synthesis of the leading strand? How is the structure of mRNA suited to its function? How is the structure of tRNA suited to its function? How is the structure of the nucleus suited to its function for protein synthesis?arrow_forwardThe following sequence represents a few codons present in one strand of DNA.Using this strand of DNA as a template strand for transcription, you are required to synthesize a new RNA strand. A) Show the codons that will be present on the RNA strand. B) Using the universal genetic code, provide the amino acids on the protein that will be translated from the RNA strand. 3’ TAC ATG GTT GTG CTA ATT 5’arrow_forwardWhich of the following is NOT correct concerning the initiation of replication in E. coli? Question 29 options: A) It involves a region of the DNA called oriC. B) DnaA proteins bind to the DNA to begin separation of the strands. C) The strands are initially separated at GC-rich regions of DNA. D) Following initial separation, enzymes continue to separate the parental DNA strands around the rest of the chromosome.arrow_forward
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