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Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 14, Problem 11RQ
How did Meselson and Stahl support Watson and Crick’s double-helix model?
- They demonstrated that each strand serves as a template tor synthesizing a new strand of DNA
- They showed that the DNA strands break and recombine without losing genetic material
- They proved that DNA maintains a doublehelix structure while undergoing semiconservative replication
- They demonstrated that conservative replication maintains the complementary base pairing of each DNA helix.
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Students have asked these similar questions
The following diagram represents a DNA molecule that is undergoing
replication. Draw in the strands of newly synthesized DNA and identify
(a) the polarity of the newly synthesized strands, (b) the leading and
lagging strands, (c) Okazaki fragments, and (d) RNA primers.
Origin
3'
5'
5'
3'
Unwindirg
Unwinding
Origin
in DNA replication, if the template strand is 5’-ATCCGTGTAACCTT-3’, what is the sequence of the newly synthesized DNA strand? Write the sequence from 5’ to 3’.
DNA replication occurs by adding
(Note: NTPS = nucleotide triphosphates; dNTPs = deoxynucleotide triphosphates)
DNTPS to the 3' end of the template strand
NTPS to the 3' end of the daughter strand
DNTPS to the 3' end of the daughter strand
DNTPS to the 5' end of the template strand
NTPS to the 5' end of the daughter strand
Chapter 14 Solutions
Biology 2e
Ch. 14 - Figure 14.10 In eukaryotic cells, DNA and RNA...Ch. 14 - Figure 14.14 You isolate a cell strain in which...Ch. 14 - Figure 14.21 A fr am eshift mutation that results...Ch. 14 - If DNA of a particular species was analyzed and it...Ch. 14 - The experiments by Hershey and Chase helped...Ch. 14 - Bacterial transformation is a major concern in...Ch. 14 - DNA double helix does not have which of the...Ch. 14 - In eukaryotes, what is the DNA wrapped around?...Ch. 14 - Meselson and Stahl's experiments proved that DNA...Ch. 14 - If the sequence of the 5'-3' strand is AATGCTAC,...
Ch. 14 - How did Meselson and Stahl support Watson and...Ch. 14 - Which of the following components is not involved...Ch. 14 - Which of the following does the enzyme primase...Ch. 14 - In which direction does DNA replication take...Ch. 14 - A scientist randomly mutates the DNA of a...Ch. 14 - The ends of the linear chromosomes are maintained...Ch. 14 - Which of the following is not a true statement...Ch. 14 - During proofreading, which of the following...Ch. 14 - The initial mechanism for repairing nucleotide...Ch. 14 - A scientist creates fruit fly larvae with a...Ch. 14 - Explain Griffith's transformation experiments What...Ch. 14 - Why were radioactive sulfur and phosphorous used...Ch. 14 - When Chargaffwas performing his experiments, the...Ch. 14 - Provide a brief summary of the Sanger sequencing...Ch. 14 - Describe the structure and complementary base...Ch. 14 - Prokaryotes have a single circular chromosome...Ch. 14 - How did the scientific community learn that DNA...Ch. 14 - Imagine the Meselson and Stahl experiments had...Ch. 14 - DNA replication is bidirectional and...Ch. 14 - What are Okazaki fragments and how they are...Ch. 14 - If the rate of replication in a particular...Ch. 14 - Explain the events taking place at the replication...Ch. 14 - What is the role of a primer in DNA replication?...Ch. 14 - Quinolone antibiotics treat bacterial infections...Ch. 14 - How do the linear chromosomes in eukaryotes ensure...Ch. 14 - What is the consequence of mutation of a mismatch...Ch. 14 - An adult with a history of tanning has his genome...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Single-stranded binding proteins (SSBPs) bind to single-stranded DNA at the replication fork and prevent formation of short hairpin sequences that would otherwise impede DNA synthesis. What sorts of sequences in single-stranded DNA might be able to form a hairpin? Write out an example of a sequence that could form a 5-nucleotide hairpin loop, and draw it.arrow_forwardWhich mechanism contributes to accuracy during DNA replication? Group of answer choices Base-stacking between nucleotides and the template DNA controls insertion of the correct nucleotide. Using primers increases accuracy because the first nucleotides in a new nucleic acid chain are more likely to be correct. The mismatch repair system recognizes an incorrect base-pair and corrects the mistake in both strands. All DNA polymerases have a 5′→ 3′ exonuclease activity which can remove incorrect nucleotides during replication.arrow_forwardKornberg showed that nucleotides are added to the 3' end of eachgrowing DNA strand. In what way does an exposed 3'-OH groupparticipate in strand elongation?arrow_forward
- Can you please help explain which best describes the role of topoisomerase?arrow_forwardIn both leading and lagging strand synthesis, DNA replication always proceeds in a certain direction. What direction is this? Explain how oligonucleotide primers in the Polymerase Chain Reaction work (PCR)arrow_forwardDraw the steps of DNA replication. Use the following nucleotide sequence as reference: 5’ C C T A T G C A G T G G C C A T A T T C C A A A G C A T A G C 3’arrow_forward
- The DNA STRAND IS 3’ TAC-AGC-ACT-CAG-TCA 5’ and Non-template strand = 5' - ATG-TCG-TGA-GTC-AGT - 3' . If on the non-coding strand of DNA there is suddenly one T base that sneaks into the 4th sequence (from the left), or causes a mutation, then how will the RNA be formed and the chain arrangement of the amino acids produced by this mutation? 4th sequence (from the left) should be = TCG right?arrow_forwardX-ray was used by Rosalind Franklin and Maurice Wilkins to study the molecular structure of DNA. Why is their finding not accepted by Watson and Crick? Explain.arrow_forwardName an important difference in the replication of circular DNA versus linear double-stranded DNA.arrow_forward
- DNA is made of two strands that are antiparallel. If one strand runs from 3’ to 5’ direction the other one will go from 5’ to 3’ direction. During replication or transcription, whatever the process is, it will always follow the 5’ to 3’ direction using the 3’ to 5’ directed strand as the template strand. Therefore, if following is the DNA sequence 5’-CCG ATC GCA CAA-3’ Using this sequence as template after transcription no protein can be translated. Why? Presence of start codon Absence of start codon Due to mutation If you want to start the translation, what change you need in the second codon (from 5’ to 3’ direction)? Substitution of C with G No change4 Deletion of Both I & IIIarrow_forwardWhat is generated from the replication of DNA ? what method is used ? Describe the process. What are Okazaki fragments? What enzymes are used ?arrow_forwardDetermine what amino acid will be formed from the given DNA strand below: 3’ T A C A T G C C G A A T 5’ Note: Prepare the partner strand of this DNA. Discuss how will replication happen by mentioning the enzyme needed then transcribe to form mRNA. Discuss what will happen to mRNA, then translate, mentioning the anticodon to be used. Look at the genetic code to know what amino acid will become part of the polypeptide chain. 1. Partner DNA strand 2. the mRNA strand 3. the tRNA 4. the formed amino acidsarrow_forward
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