All of the rickettsias are spread by transovarian transfer.
Answer the following statement true (T) or false (F)
False
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Odor molecule receptors are located on the ________ extending from olfactory receptor cells in the human nose.
A. axon B. synapse C. oligodendrocyte D. cilia E. soma
Which phase occurs during mitosis?
A) first gap phase B) metaphase C) second gap phase D) S phase
Which test uses radioactive isotopes to label antibodies or antigens in order to detect minute amounts of corresponding antigen or antibody?
A. Radioimmunoassay (RIA) B. Ouchterlony double diffusion C. Immunelectrophoresis D. Quellung test E. Western blot
What is meant by the description "antiparallel" regarding the strands that make up DNA?
A) The twisting nature of DNA creates nonparallel strands. B) The 5' to 3' direction of one strand runs counter to the to direction of the other strand. C) Base pairings create unequal spacing between the two DNA strands. D) One strand contains only purines and the other contains only pyrimidines.