Toxic shock syndrome toxins are superantigens
Indicate whether this statement is TRUE or FALSE.
TRUE
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Which are essentially equivalent treatments?
A. Dry 200?C heat for 1.5 hours; wet 121?C heat for 15 minutes B. Dry 160?C heat for 1.0 hour; wet 200?C heat for 30 minutes C. Dry 121?C heat for 1.5 hours; wet 200?C heat for 15 minutes D. Dry 100?C heat for 2.0 hours; wet 100?C heat for 30 minutes
If similarities between two structures in different organisms reflect independent evolution, these structures are
A. analogous. B. vestigial. C. homeotic. D. homologous. E. heterologous.
A Barr body in a mammalian female cell represents:a
an inactivated oocyte. b. a polar body. c. a degenerate nucleus. d. an inactivated X chromosome. e. an inactivated Y chromosome.
What would be the most trustworthy source of scientific information?
A) anecdotal evidence B) paid advertisements C) peer-reviewed research publications D) science reports in newspapers and on TV