Oxidation-reduction reactions
A. remove electrons from both molecules involved.
B. remove protons from one molecule and join them to another molecule.
C. never occur at the same time.
D. remove electrons from one molecule and add them to another molecule simultaneously.
E. remove oxygen from the cell.
D. remove electrons from one molecule and add them to another molecule simultaneously.
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How many HLA haplotypes does each human have?
A. 1 D. 4 B. 2 E. 5 C. 3
Taste cells and the carotid bodies are alike in that both
A. respond to changes in pH. B. are chemoreceptors. C. utilize pressure to activate sensory receptors. D. are found in the mouth. E. respond to distant stimuli.
Heavy methylation of lysines in histone tails is usually associated with repression of transcription
A. true B. false
________ involves the fusion of a somatic cell with an enucleated egg cell
Fill in the blank(s) with correct word