Injecting DNA into cells can be accomplished using
A. nitrocellulose membranes.
B. silicon chips and nucleic acids.
C. compressed air and gold beads.
D. micropipettes.
E. micropipettes, or compressed air and gold beads.
Answer: E
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The first and second laws of thermodynamics apply to nonliving systems like gasoline engines but do not apply to reactions in living cells.
a. true b. false
Studies of a soybean plant (Glycine max) and the bacterium Bradyrhizobium japonicum have shown that the tip of a root hair curls toward the bacteria as a response to which of the following?
a. a flavonoid released by soybean roots b. nod gene products produced by soybean roots c. nod gene products produced by the bacterium d. nitrogen fixation by the bacterium
Most of the energy required to form the peptide bonds during elongation comes from _____
a. ATP b. CTP c. GTP d. TTP e. whichever nucleotide is at the front of the codon
Mendel called crosses involving two traits ____________________ crosses. Fill in the blank(s) with the appropriate word(s)