Loose-leaf Version for Lehninger Principles of Biochemistry 7E & SaplingPlus for Lehninger Principles of Biochemistry 7E (Six-Month Access)
7th Edition
ISBN: 9781319125752
Author: David L. Nelson, Michael M. Cox
Publisher: W. H. Freeman
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Chapter 8, Problem 19P
(a)
Summary Introduction
To determine: The way in which decreased water content in spores affect some types of mutations.
Introduction:
Bacterial endospores are formed under unfavorable environmental conditions. Spores have a method to prevent lethal mutation accummulation in their DNA in period of dormancy. Bacterial spores like that of Bacillus subtilis have more potential to resist heat, oxydizing agents and UV radiation which are mutation promotors.
(b)
Summary Introduction
To determine: The causes of cyclobutane dimmer formation and the reason of some bacterial endospores requiring the mechanism to prevent their formation.
Introduction:
Bacterial endospores are formed under unfavorable environmental conditions. Spores have a method to prevent lethal mutation accummulation in their DNA in period of dormancy. Bacterial spores like that of Bacillus subtilis have more potential to resist heat, oxydizing agents and UV radiation which are mutation promotors.
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The preferred substrate is T because the enzyme half-saturates at 7.00 mM for T, but requires 28.0 mM for U, and 112 mM for S.
b
Question Content Area
The rate constant k 2 with substrate S is 9.60×107 sec-1, with substrate T, k 2 = 6.00×104 sec-1, and with substrate U, k 2 = 2.40×106 sec-1.
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a
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Chapter 8 Solutions
Loose-leaf Version for Lehninger Principles of Biochemistry 7E & SaplingPlus for Lehninger Principles of Biochemistry 7E (Six-Month Access)
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