BIOLOGY
5th Edition
ISBN: 9781265202859
Author: BROOKER
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Textbook Question
Chapter 11, Problem 5TY
Which of the following statements about the process of
- a. New DNA molecules are composed of two completely new strands.
- b. New DNA molecules are composed of one strand from the old molecule and one new strand.
- c. New DNA molecules are composed of strands that are a mixture of sections from the old molecule and sections that are new.
- d. None of the above statements is correct.
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Which statement about Okazaki fragments is true?
Select one:
a. DNA polymerase doesn’t need a primer to build these fragments
b. They act as a primer that initiates DNA replication.
c. They correct errors made during earlier phases of DNA replication.
d. They are necessary because DNA polymerase can only build DNA in the 5’ to 3’ direction, so for one of the strands at each fork, the DNA polymerase can only buildaway from the fork.
e. They prevent the ends of chromosomes from shortening with every replication.
Which statement about Okazaki fragments is true?
Select one:
O a. They are necessary because DNA polymerase can only build DNA in the 5' to 3' direction, so for one of the strands at each fork, the DNA
polymerase can only build away from the fork.
O b. They correct errors made during earlier phases of DNA replication.
O c. They act as a primer that initiates DNA replication.
O d. They prevent the ends of chromosomes from shortening with every replication.
e. DNA polymerase doesn't need a primer to build these fragments.
DNA replication involves a series of steps, including initiation, making primers, extension, and connecting DNA fragments. The cell uses different enzymes in a particular order to accomplish these steps. Which of the following represents the correct general order of enzyme use? A. DNA polymerases, helicase, primase, ligase B. Helicase, ligase, primase, DNA polymerases C. Helicase, primase, DNA polymerases, ligase D. Primase, helicase, DNA polymerases, ligase
Chapter 11 Solutions
BIOLOGY
Ch. 11.1 - Prob. 1CSCh. 11.1 - Prob. 1EQCh. 11.1 - Prob. 2EQCh. 11.1 - CoreSKILL In the experiment of Avery, MacLeod,...Ch. 11.2 - Prob. 1CCCh. 11.2 - Prob. 2CCCh. 11.2 - Core Skill: Modeling The goal of this modeling...Ch. 11.2 - Prob. 2CSCh. 11.3 - If this experiment was conducted for four rounds...Ch. 11.4 - Molecular Mechanism of DNA Replication Concept...
Ch. 11.4 - Prob. 2CCCh. 11.4 - Prob. 3CCCh. 11.4 - Prob. 4CCCh. 11.5 - Prob. 1CCCh. 11.5 - Prob. 1CSCh. 11 - Why did researchers initially believe that the...Ch. 11 - Prob. 2TYCh. 11 - Which of the following equations is accurate...Ch. 11 - Prob. 4TYCh. 11 - Which of the following statements about the...Ch. 11 - Meselson and Stahl were able to demonstrate...Ch. 11 - During replication of a DNA molecule, the daughter...Ch. 11 - Prob. 8TYCh. 11 - A nucleosome is a. a dark-staining body composed...Ch. 11 - The conversion of euchromatin into heterochromatin...Ch. 11 - What are the four key criteria that the genetic...Ch. 11 - A double-stranded DNA molecule contains 560...Ch. 11 - Prob. 3CQCh. 11 - Prob. 1COQCh. 11 - CoreSKILL How might you provide evidence that DNA...
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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
- In DNA replication, what is meant when we say it is “semi-conservative”? a. One new DNA molecule contains the parent strands and the other DNA molecule contains only new strands b. Both new DNA strands contain a parent strand and a template strand c. The new DNA molecules are exactly like the original strand d. Some of the genes are replicated, some aren’tarrow_forwardwhen a cell to divide, its DNA must be replicated (copied). a.List the most important participating components and their functions in replication b.why is it important that the replication goes right and that relatively few mutations occur during the replication? c.Will the offspring of the individual who received a mutation inherit the mutationarrow_forwardWhich of the following is the correct way that a polynucleotide chain is put together in one DNA strand? a. 5’ OH of the sugar from one nucleotide attacks the 3’ Phosphate of the next nucleotide to form the phosphate diester bond. b. 3’ phosphate of the sugar from one nucleotide attacks the 5’ OH of the next nucleotide to form the phosphate diester bond. c. 5’ phosphate of the sugar from one nucleotide attacks the 3’ OH of the next nucleotide to form the phosphate diester bond. d. 3’ OH of the sugar from one nucleotide attacks the 5’ Phosphate of the next nucleotide to form the phosphate diester bond.arrow_forward
- Which of the following statements about DNA replication is INCORRECT? Select one: O a. DNA polymerase is the enzyme that adds nucleotides to the growing DNA strand. O b. DNA polymerase can only synthesize the new DNA strand in the 5' to 3' direction. O c. helicase is the enzyme which connects Okazaki fragments on the lagging strand. O d. the lagging strand has many primers. O e. the leading strand has only one primer.arrow_forwardDetermine whether each statement isTRUE or FALSE.a. In eukaryotic chromosomes, DNA replication begins at a single point in the chromosome and proceeds in two directions.b. The bonds between the sugars and phosphates are broken during DNA replication.c. The elongation of the leading strand during DNA synthesis progresses away from the replication fork.d. Each DNA molecule resulting from replication has one original strand and one new strand.e. The difference in how the leading and lagging strands of DNA molecules are synthesized is due to DNA polymerase adding new nucleotides only to the 3’ end of a growing strand, and the strands are anti-parallel.arrow_forwardEach time double-stranded (ds) DNA is replicated, the resulting copies of DNA include: A. One parent (original) strand and one daughter (new) strand B. Either two parent (original) strands or two daughter (new) strands C. Four parent strands D. Four daughter strandsarrow_forward
- Which of the following would be most likely to cause a mutation? A. the addition of nucleotides to the 3’ end of the growing strand B. the insertion of a mismatched nucleotide into a DNA strand C. the unwinding of the DNA strand D. the synthesis of short stretches of DNAarrow_forwardDNA replication is said to be semiconservative becausea. each new DNA molecule contains one new strand and one old one.b. every other new DNA molecule contains two old strands.c. each new DNA strand contains two new strands.d. every other new DNA molecule contains one new strand and one old one.arrow_forwardWhich of the following is NOT true of DNA polymerase? a. DNA polymerase builds the new strand from 5' to 3'. b. DNA polymerase can start new DNA strands independently. c. DNA polymerase uses a "guess and check" method to add nucleotides. d. DNA polymerase uses dATP as a nucleotide. e. DNA polymerase reads the template from 3' to 5'.arrow_forward
- Indicate whether each of the following statementsrelating to aspects of DNA replication is true or false.a. The lagging strand grows in the same direction as thereplication fork moves.b. Growth of the leading strand involves the productionof Okazaki fragments.c. Lagging strands always involve “daughter” DNAsegments, and leading strands always involve“parent” DNA segments.d. The enzyme DNA ligase effects the unwinding of aDNA double helix.arrow_forwardDNA strands are anti-parallel and DNA polymerase can only synthesize DNA in a 5' to 3' direction. How does the enzyme synthesize both strands at the same time? A. The leading strand is sythesised in Okazaki fragments B. The lagging strand is synthesised in short Okazaki fragments. C. Only one strand is replicated. D. There are more than one DNA polymerase involved.arrow_forwardWhich of the following statements is correct about DNA replication? Select one: a. The lagging strand is made continuously. O b. b. DNA polymerase adds nucleotides in the 3' to 5' direction. O c. DNA polymerase can build DNA from scratch. O d. d. The place where the parent DNA becomes unzipped and replication begins is called the replication fork. O e. DNA is made conservatively.arrow_forward
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