Sickle-cell anemia is an example of what type of mutation?
A. silent
B. missense
C. nonsense
D. frameshift
E. base pair deletion
B
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Broad, ecologically uniform areas with stable and distinctive collections of species are called ____
Fill in the blank with the appropriate word.
Food is usually contaminated by which of the following sources?
a. aerosols b. mechanical vector c. soil d. handler e. biological vector
A polyribosome is:
a. a complex of many ribosomes and an mRNA. b. a complex of many ribosomes in eukaryotes. c. an initiation complex in eukaryotes. d. an elongation complex in eukaryotes. e. a complex of a ribosome with its two subunits and several mRNAs
When seawater rises more than 10 mm per year, symbiotic zoxoanthellae will
a. increase due to the warm water. b. be reduced without sufficient sunlight. c. be reduced by the increased pressure. d. increase due to the input of nutrients. e. increase due to increased water pressure.