Hydrogen bonds are found in all of the following EXCEPT
A) between phosphates in ATP.
B) in ?-helices.
C) between water molecules.
D) in the DNA double helix between nucleotides.
E) between the R groups of amino acids in proteins.
A
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The immune response is as important as or even more important than antibiotics in the elimination of Bordetella pertussis from the body
Indicate whether the statement is true or false.
A laboratory technologist splashed a blood specimen onto his face, eyes, nose, and mouth. This specimen was from an HIV positive patient. If this blood exposure leads to HIV infection in the technologist, the transmission route is ________.
A. direct B. vehicle C. droplet nuclei D. fomite E. aerosol
Which species of Homo is most closely related to the Australopithecines?
A. habilis B. ergaster C. erectus D. sapiens
What features are common to the eyes of Arthropods?
A. have compound eyes composed of independent units called ommatidia. B. make use of a wider range of the electromagnetic spectrum than humans. C. have eyespots that sense the direction and intensity of light. D. have camera-type eyes. E. All of the answers are correct.