An inorganic ion that binds to an enzyme to help it function is called a
a. vitamin.
b. cofactor.
c. coenzyme.
d. facilitator.
Answer: b. cofactor.
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Restriction endonucleases recognize specific sequences in the DNA
Indicate whether the statement is true or false
Match the type of microscopy with the appropriate characteristic.
A) uses a laser to view a single plane of a specimen B) detects electrons passing through a specimen C) light passes directly through specimen D) detects electrons deflected from the surface of the specimen E) shows specific molecules F) amplifies variations in density 1) Brightfield 2) Fluorescence 3) Phase-contrast 4) Confocal 5) Transmission electron microscopy 6) Scanning electron microscopy
To which group of arthropods do spiders belong?
a. chelicerates b. crustaceans c. myriapods d. insects e. none of the above
Seedless bananas are produced from
A) sterile tetraploid allopolyploid plants. B) sterile triploid autopolyploid plants. C) monoploid plants grown from unfertilized seeds. D) fertile diploid plants that are unfertilized. E) Both C and D