Q13. A mutant strain of E. coli is unable to synthesize any functional desaturase enzyme. However, this mutant strain can grow better at high temperatures than wild-type cells. What best explains this better high temperature growth?

Human Anatomy & Physiology (11th Edition)
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Q13. A mutant strain of E. coli is unable to synthesize any functional desaturase enzyme. However, this mutant strain can grow better at high temperatures than wild-type cells. What best explains this better high temperature growth?

A. Wild-type cells contain some unsaturated fatty acids, even at high temperatures.
B. Wild-type cells have membranes that are more rigid at higher temperatures.
C. Mutant cells have membranes that remain fluid at all growth temperatures.
D. Mutant cells have constitutively high abundance of unsaturated fatty acids.
Transcribed Image Text:A. Wild-type cells contain some unsaturated fatty acids, even at high temperatures. B. Wild-type cells have membranes that are more rigid at higher temperatures. C. Mutant cells have membranes that remain fluid at all growth temperatures. D. Mutant cells have constitutively high abundance of unsaturated fatty acids.
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