What do genes consist of?
A) carbohydrates
B) lipids
C) proteins
D) nucleic acids
D
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Which of the following is not a benefit or advantage of using mass spectrophotometry?
A. Proteins can be sequenced by mass spectrophotometry. B. The mass of a protein can be determined and lead to its identification. C. Changes in mass due to binding of cofactors, bound metal ions, and covalent modifications can be measured. D. If protein is enzyme, sequence information includes three-dimensional structure of active site. E. Fragments of the protein may permit unambiguous association with its gene.
Inhibitory neurotransmitters cause hyperpolarization of the postsynaptic cell.
a. true b. false
The female gametophyte generation in angiosperms is found in the:a
antheridium. b. prothallium. c. ovule of the ovary. d. stigma and style of the pistil. e. megasporophyte of the cones.
During the ATP cycle, ATP is assembled from a sugar, adenine base, and three phosphates.
a. true b. false