Although the specific mechanism of RNA interference has not been fully defined, it involves
A. double stranded RNA interference with DNA.
B. double stranded RNA interference with mRNA.
C. double stranded mRNA interference with DNA.
D. double stranded DNA interference with mRNA.
Answer: B
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Gamma radiation
A. is used to sterilize some food products. B. is a type of nonionizing radiation. C. has a longer wavelength than UV radiation. D. has poor penetrating power.
In living cells, a process by which cells break polymers down into monomers with the addition of water is
A. hydrolysis. B. dehydration synthesis. C. reproduction. D. All of the answer choices are correct. E. reduction.
Which of the following is not an adaptation of flowering plants that contributed to their evolutionary
success? a. seed production b. a wide variety of pollination strategies c. efficient water-conducting cells d. broad leaves with large surface areas e. adaptability of the gametophyte generation
The extracellular matrix
a. assists in the movement of substances across the plasma membrane. b. prevents the loss of water when cells are placed in a hypertonic solution. c. has numerous functions that affect the shape and activities of the cell that produced it. d. contains the junctions that sometimes occur between cells. e. All of these are correct.