Campbell Essential Biology (7th Edition)
7th Edition
ISBN: 9780134765037
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
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Chapter 10, Problem 4SQ
A scientist inserts a radioactively labeled DNA molecule into a bacterium. The bacterium replicates this DNA molecule and distributes one daughter molecule (double helix) to each of two daughter cells. How much radioactivity will the DNA in each of the two daughter cells contain? Why?
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Answer the following questions.
A) Write the protein that catalyzes the formation of phosphodiester bonds.
B) Write the protein that breaks the covalent bonds.
C) A mutated strain of E. coli normally replicates DNA at 25ºC, but replication immediately stops when the temperature is raised to 37ºC. Which protein is functional at higher temperature?
Probably not, please write.
D) Write down the enzyme that catalyzes the binding of an amino acid to tRNA in the formation of aminoacyl tRNA.
E) Write down the enzyme that is mostly responsible for the synthesis of the chain that begins to form during DNA replication in E. coli
Which 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.
What technique was used to photograph DNA in franklins famous photo #51?
A- gamma ray photography
B- atomic force microscopy
C- electron microscopy
D- x-Ray crystallography
Chapter 10 Solutions
Campbell Essential Biology (7th Edition)
Ch. 10 - A molecule of DNA contains two polymer strands...Ch. 10 - Name the three parts of every nucleotide.Ch. 10 - List these terms in order of size from largest to...Ch. 10 - A scientist inserts a radioactively labeled DNA...Ch. 10 - The nucleotide sequence of a DNA codon is GTA....Ch. 10 - Describe the process by which the information is a...Ch. 10 - Match the following molecules with the cellular...Ch. 10 - Prob. 8SQCh. 10 - Prob. 9SQCh. 10 - How do some viruses reproduce without ever having...
Ch. 10 - HIV requires an enzyme called _____ to convert its...Ch. 10 - Nearly every organism on Earth shares the...Ch. 10 - Prob. 13IMTCh. 10 - Genes carry the instructions needed to build an...Ch. 10 - A cell containing a single chromosome is placed in...Ch. 10 - In a classic 1952 experiment, biologists Alfred...Ch. 10 - Interpreting Data The graph shows the number of...Ch. 10 - Scientists at the National Institutes of Health...Ch. 10 - Prob. 19BSCh. 10 - Flu vaccines have been shown to be safe, are very...
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