Regarding the protein structure, how are ?-pleated sheets arranged and stabilized?
What will be an ideal response?
Several chains run in parallel or antiparallel fashion stabilized by hydrogen bonds formed between components of the peptide linkage.
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Predict how the plasma membrane fatty acid composition would change as the temperature of the habitat of an aquatic bacterial species warms from 2oC to 15oC during the spring and summer months.
A. The percentage of saturated fatty acids would decrease. B. The percentage of saturated fatty acids would remain unchanged. C. The percentage of saturated fatty acids would increase. D. The percentage of unsaturated fatty acids would increase.
Bacterial strains that are characterized by biochemical differences are called ________.
Fill in the blank(s) with the appropriate word(s).
Random evolutionary changes in a small breeding population is known as:
a. gene flow. b. genetic drift. c. disruptive selection. d. natural selection. e. mutation.
Which population of organisms would be in the greatest danger of becoming extinct?
a) a population of organisms having few variations living in an unstable environment b) a population of organisms having many variations living in an unstable environment c) a population of organisms having few variations living in a stable environment d) a population of organisms having many variations living in a stable environment