Which of the following is an INCORRECT statement about restriction enzymes?
A) Most restriction enzymes are isolated from bacteria.
B) Restriction enzymes usually recognize palindromic sequences.
C) Restriction enzymes create phosphodiester bonds between pieces of DNA in a cloning
experiment.
D) Restriction enzymes can cut to create overlapping single-stranded ends of DNA.
E) Restriction enzymes can cut to create blunt-ended pieces of DNA.
C
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The distribution of individuals in a school of
fish is likely to be a. clumped. b. random. c. uniform. d. constant. e. homogeneous
The leaves of plants can be thought of as "eating" sunlight. From an energetic perspective this makes sense because:
a. light energy, like chemical energy released when the bonds of food molecules are broken, is a type of kinetic energy. b. the carbon-oxygen bonds within a photon of light release energy when broken by the enzymes in the chloroplasts. c. both light energy and food energy can be converted to kinetic energy without the loss of heat. d. photons are linked together by hydrogen bonds, which release energy when striking the surface of a leaf. e. the carbon-hydrogen bonds within a photon of light release energy when broken by the enzymes in the chloroplasts.
Honeybees are able to discriminate between different flowers using
A) color vision. B) a single lens. C) eye cups. D) basilar membranes.
The vast branching tree of historical relationships for all known species that live or ever have lived:
a. connects evolutionary history to the current diversity of life on Earth. b. is a map that reflects the process of descent with modification. c. is known as a phylogenetic tree. d. A and C. e. All of the above.