Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 15.3, Problem 1CC
DNA Repair
Concept Check: Which components of the NER system are responsible for removing the damaged DNA?
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VISUAL SKILLS If the DNA pol I in a given cell werenonfunctional, how would that affect the synthesis ofa leading strand? In the overview box in Figure 16.17,point out where DNA pol I would normally function onthe top leading strand.
Question:-
compare these two techniques. Compare a nucleosome protection assay and a northern blotting is a text format and also in drawinv format.
for drawing use same sample for both techniques
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.
Chapter 15 Solutions
Biology
Ch. 15.1 - Consequences of Mutations Concept Check: Based on...Ch. 15.1 - Prob. 2CCCh. 15.2 - Prob. 1EQCh. 15.2 - Prob. 2EQCh. 15.2 - Prob. 3EQCh. 15.2 - Prob. 1CCCh. 15.3 - DNA Repair Concept Check: Which components of the...Ch. 15.3 - Why is this person so sensitive to sunlight?...Ch. 15.4 - Prob. 1CCCh. 15.4 - Prob. 2CS
Ch. 15.4 - Prob. 2CCCh. 15.4 - Prob. 3CCCh. 15.4 - Prob. 4CCCh. 15 - Prob. 1TYCh. 15 - Prob. 2TYCh. 15 - Prob. 3TYCh. 15 - Prob. 4TYCh. 15 - Prob. 5TYCh. 15 - The Ames test a. provides a way to determine if...Ch. 15 - Xeroderma pigmentosum a. is a genetic disorder...Ch. 15 - Prob. 8TYCh. 15 - Prob. 9TYCh. 15 - Prob. 10TYCh. 15 - Prob. 1CQCh. 15 - Prob. 2CQCh. 15 - Prob. 3CQCh. 15 - Prob. 1COQCh. 15 - Distinguish between spontaneous and induced...
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- 4a in context to taking genomic DNA from eukaryotic cells and randomly shearing it into pieces of a constant size, why do some of the genomic DNA fragments re-nature so much more quickly than other fragmentsarrow_forwardINSTRUCTION: = IF BOTH STATEMENT ARE TRUE = IF FIRST STATEMENT IS TRUE WHILE SECOND STATEMENT IS FALSE = IF FIRST STATEMENT IS FALSE WHILE SECOND STATEMENT IS TRUE = IF BOTH STATEMENTS ARE FALSE STAMENT 1: RNA splicing is the step in post transcriptional processing where intervening sequences are removed STAMENT 2: 5’ to 3’ direction is the direction of growth of the peptide chain ANSWER: STAMENT 1: The enzyme that joins the gaps in newly synthesized DNA is called DNA polymerase STAMENT 2: The name of the compound formed when cytosine is bonded to ribose is cytidine ANSWER: STAMENT 1: Codon is a term that refers to the 3-nucleotide code for amino acids in mRNA STAMENT 2: Transition is a kind of mutation where a purine changes to another purine ANSWER:arrow_forwardAnalyzing Cloned Sequences What kind of information can a DNA sequence provide to a researcher studying a disease-causing gene?arrow_forward
- Q1: Summarize how DNA repair works and why the repair mechanisms are essential for the normal function of cells and whole organisms. Q2: Is DNA repair 100 percent effective? Q3: What would happen to an organism if its DNA repair became less effective?arrow_forwardNeed help fast What length of DNA (based on the number of subunits) has a potential diversity close to 3 *10^16?arrow_forwardINSTRUCTION: = IF BOTH STATEMENT ARE TRUE = IF FIRST STATEMENT IS TRUE WHILE SECOND STATEMENT IS FALSE = IF FIRST STATEMENT IS FALSE WHILE SECOND STATEMENT IS TRUE = IF BOTH STATEMENTS ARE FALSE STAMENT 1: If 3’ ATTG 5’ is transcribed, the complementary strands is 5’ UAAC 3’ STAMENT 2: Guanine and Cytosine are purine bases ANSWER: STAMENT 1: The general term for the enzyme that connects nucleotide triphosphates in DNA is DNA transferase STAMENT 2: The enzyme that unwinds the double stranded DNA is topoisomerase ANSWER: STAMENT 1: The name of the compound formed when uracil is bonded to ribose is uradine STAMENT 2: The piece of nucleic acid that is complementary to the DNA template and serves as a starting point of replication is called RNA promoter ANSWER:arrow_forward
- Question:- Explain why there are very few sequence-specific DNA-binding proteins that bind to the minor groove of double-stranded DNA.arrow_forwardReplication:- what other enzymes are involved in the initiation phase?- explain the role of primers in this phase- how is the building of the leading strand different from that of the lagging strand?arrow_forwardTrue or false? DNA repair mechanisms all depend on the existence of two copies of the genetic information, one in each of the homologous chromosomes. DNA primase makes DNA primers for the synthesis of Okazaki fragments in the DNA lagging strand. The repair of double-stranded breaks by nonhomologous end joining is accurate. RNA polymerase III transcribes all protein-coding genes.arrow_forward
- ASAP What would be the result of a mutation that caused a cell to express the telomerase enzyme?arrow_forwardINSTRUCTION: = IF BOTH STATEMENT ARE TRUE = IF FIRST STATEMENT IS TRUE WHILE SECOND STATEMENT IS FALSE = IF FIRST STATEMENT IS FALSE WHILE SECOND STATEMENT IS TRUE = IF BOTH STATEMENTS ARE FALSE STAMENT 1: UGA, UAG and UCG are termination codon STAMENT 2: Missense mutation is a type of mutation that changes the coded amino acid ANSWER: STAMENT 1: Binding of RNA primer to the DNA is the first step in the transcription cycle STAMENT 2: Translation refers to the synthesis of proteins using the information contained in mRNA ANSWER: STAMENT 1: The carbon number in ribose where guanine is connected is 1 STAMENT 2: The other name for unprocessed eukaryotic RNA is raw nuclear RNA ANSWER:arrow_forwardInitiation during transcription: Does a polymerization reaction (when an RNA polymerase breaks apart the phosphate bond for energy during transcription) happen in eukaryotes?arrow_forward
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