In which structure do fern spores form?
a. frond
b. rhizome
c. sorus
d. rhizoid
e. gametangium
ANSWER: c
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Which of the following viruses would most likely have reverse transcriptase?
A) an RNA-based lytic virus B) an RNA-based lysogenic virus C) a DNA-based lytic virus D) a DNA-based lysogenic virus
The transfer of _____________ from one molecule to another is an oxidation-reduction reaction, or redox reaction.
Fill in the blank(s) with the appropriate word.
The source of sulfur for Hydrogen-Sulfide-producing bacteria in the Triple Sugar Iron Agar is
A. Sodium thiosulfate B. Ferrous sulfate C. Sodium sulfide D. Ferric citrate E. Sodium sulfate
Low body temperature triggers (A)______, followed by (B)_________. These hormone secretions activate cellular metabolism.
a. (A) reduction of TSH (B) reduction of thyroxin b. (A) reduction of glucocorticoid (B) up-regulation of thyroxin c. (A) up-regulation of glucocorticoid (B) reduction of thyroxin d. (A) up-regulation of TSH (B) up-regulation of thyroxin