How is penicillin removed from the blood?
A. tubular reabsorption
B. glomerular filtration
C. phagocytosis
D. tubular secretion
E. passive transport
Answer: D
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A seedling no longer needs its stored food sources once it develops
a. an embryo. b. cotyledons. c. leaves. d. roots.
V Fill in the blank(s) with the appropriate word(s)
Transgenic bacteria are bacteria:
a. that only have trans-DNA. b. that have hybridized with other species of bacteria. c. found in the DNA of other organisms. d. that have a sequence of DNA from another organism inserted into them. e. that produce genes used in recombinant DNA technology.
What molecule is responsible for translation of the four-letter "nucleic acid language" (A, T, G, and C nucleotides) into the 20 "amino acid language" of proteins by bringing in amino acids to the ribosome?
A) Messenger RNA B) Ribosomal RNA C) Transfer RNA D) DNA