Which of the following is a double-stranded RNA virus?
A. Picornaviridae
B. Coronaviridae
C. Retroviridae
D. Reoviridae
E. Rhabdoviridae
Answer: D. Reoviridae
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In the figure above, representing transcription, the item labeled "B" is
a. the nontemplate strand. b. RNA-DNA hybrid. c. DNA double helix. d. the RNA copy. e. the template strand.
The distribution of cytoplasm to daughter cells is accomplished during
A) mitosis B) meiosis C) cytokinesis D) karyokinesis
In a hypothetical situation, a certain species of flea feeds only on pronghorn antelopes. In the western United States, pronghorns and cattle often associate with one another in the same open rangeland
Some of these fleas develop a strong preference for cattle blood and mate only with other fleas that prefer cattle blood. The host mammal can be considered as the fleas' habitat. If this situation persists, and new species evolve, this would be an example of _____. A) sympatric speciation and habitat isolation B) sympatric speciation and temporal isolation C) allopatric speciation and habitat isolation D) allopatric speciation and gametic isolation
During periods of rapid weight gain, people often go directly from one ________ phase into the next ______ phase without experiencing an intervening ________ phase.
Fill in the blank(s) with the appropriate word(s).