Although covalent bonds are 10–100 times stronger than noncovalent interactions, many biological processes depend upon the number and type of noncovalent interactions between molecules
Which of the noncovalent interactions below will contribute most to the strong and specific binding of two molecules, such as a pair of proteins?
(a) electrostatic attractions
(b) hydrogen bonds
(c) hydrophobic interactions
(d) Van der Waals attractions
(a)
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Indicate whether the statement is true or false.
Most of the creamy flesh of a corn kernel is ____ tissue
a. pollen b. endosperm c. ovary d. carpel e. ovulec
Gene therapy consist of
a. replacing the genomes of an individual with a brand new set of genomes with the goal of treating a genetic defect. b. replacing a defective gene in an individual with a normal gene with the goal of treating a genetic disorder. c. transferring a modified gene into an individual with the goal of treating a genetic defect. d. transferring a normal or a modified gene into an individual with the goal of treating a genetic defect. e. replacing a defective enzyme in an individual with a normal enzyme with the goal of treating a genetic disorder
After yet another patron dripped sweat on her desk, the clerk at the gym complained, "It's gross working at a gym, with everyone sweating all the time." "Yes," the manager replied, "and it's probably costing us more for ________, but I'll bet we're saving on ________."
A. the water cooler; towels B. weight machines; treadmills C. towels; heating D. the water cooler; air conditioning