Which of the following bacteria oxidize nitrite (NO2-) to produce nitrate (NO3-)?
A. Nitrobacter
B. Azospirillum
C. Nocardia
D. Cyanobacter
E. Rhizobium
Answer: A
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The genome sequence of Treponema pallidum
A. has led us to be able to completely eradicate this organism. B. should ultimately help us understand the mechanism by which this organism causes syphilis. C. almost immediately provided explanations for how this organism causes syphilis. D. identified proteins that have already been used to produce the first successful vaccine for syphilis.
In this representation of transcription, strand #
____ is ____ because it ____.
a. 2; RNA; is double-stranded b. 3; RNA; contains uracil c. 2; RNA; contains thymine d. 2; RNA; has no uracil e. 3; DNA; contains adenine
What are the three "Rs" related to regulation of animal research?
What will be an ideal response?
"She got some chromosomes from her grandfather and some from her grandmother." This is best explained by
A. independent assortment. B. cross-over. C. mitosis. D. linked genes.