The Crenarchaeota, Thaumarchaeota, and Euryarchaeota are ________.
A. now classified with the bacteria based on genomic sequence analysis
B. very closely related based on 16S rRNA comparisons
C. photosynthetic Archaea
D. the three phyla of the Archaea
Answer: D
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Several fluorogenic dyes can be used simultaneously in a sample as long as they each emit light at a different measurable wavelength
Indicate whether the statement is true or false.
Filoviruses (such as Ebola virus) that cause severe hemorrhagic fevers generally have high ________ but low ________
A) incidence / prevalence B) prevalence / mortality C) mortality / morbidity D) morbidity / mortality
The trait of cream-colored eyes in Drosophila is an example of ________
A. simple recessive alleles B. incomplete penetrance of red eyes C. a gene modifier effect in eye color D. gene dosage E. a spontaneous mutation
What bridges the gap between a sending and a receiving neuron?
a. threshold value b. action potential c. transmitter substance d. neurohormone e. neuromodulator