Which of the following does not describe an instance in which weak chemical bonds are useful in biological systems?
A. the bonding of antibodies to the antigens they recognize
B. the folding of proteins into their active conformation
C. the stabilization of DNA double-stranded helices
D. the stabilization of protein structure by the creation of salt bridges between oppositely charged amino acids
E. a gecko's ability to climb surfaces such as glass
D
You might also like to view...
0.2 mls of a 10-4 dilution of a virus preparation yields 90 plaques. What is the number of PFU per ml in the undiluted virus preparation?
A. 9.0 × 108 B. 4.5 × 106 C. 4.5 × 107 D. 9.0 × 105
Organisms that require high salt concentrations for growth are called
A. thermophiles. B. obligate halophiles. C. acidophiles. D. anaerobes.
A bacterial genome is typically
A) a single linear piece of DNA. B) multiple linear pieces of DNA. C) a linear RNA molecule. D) a single circular DNA molecule. E) multiple circular DNA molecules.
The connective tissue that helps insulate the body, cushions internal organs, and stores excess nutrient energy is _____ tissue.
Fill in the blank(s) with the appropriate word(s).