Which of the following scientists discovered penicillin?
A) Alexander Fleming
B) Paul Ehrlich
C) Selman Waksman
D) Sir Howard Walter Florey
A) Alexander Fleming
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Which of the following might be a possible
follow-up experiment? a. Repeat in a forest area totally devoid of native butterflies. b. Repeat in a wildlife sanctuary aviary after giving birds a chance to learn about yellow H. eleuchia. c. Repeat using young, inexperienced birds. d. Repeat, but count survivors for three weeks. e. Conduct all of these
All other factors being equal, the renaturation of the three classes of complementary nucleic acid sequences occurs in what order, from fastest to slowest?
What will be an ideal response?
Which of the following is found in plant cells but not animal cells?
A. central vacuole B. chromosomes C. nucleus D. lysosomes E. Golgi complex
Which one of the following do NOT apply to eukaryotic cells?
A. contain 80S ribosomes B. have histones C. have circular chromosomes D. exhibit growth via mitosis