Which part of a flower is typically the most leaflike, and when green can carry out photosynthesis?
a. carpels
b. receptacles
c. sepals
d. petals
e. stamens
C
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The prokaryote operon model explains gene
regulation at the level of a. replication. b. transcription. c. transcript processing. d. transcript transport. e. translation.
Which of the following groups functions as a narrow-spectrum antibiotic?
A) Cephalosporins B) Vancomycin C) Trimethoprim D) Chloramphenicol
"Smart" plants can reduce overuse of fertilizers by
A) using photosynthesis and fungal relationships to generate their own fertilizer. B) informing the grower of a nutrient deficiency before damage occurs. C) slowing the process of minerals washing out of the soils. D) storing fertilizers in their root systems until they are needed.
Which of the following is NOT a way to genetically engineer vaccines?
a. removing genes from the pathogen that encode virulence factors b. adding genes to a harmless virus that elicit an immune response to a pathogen c. adding the thymidine kinase gene from the vaccinia virus d. producing large amounts of immunogenic proteins by cloning