A virus with RNA-dependent RNA polymerase
a. synthesizes DNA from an RNA template.
b. synthesizes double-stranded RNA from an RNA template.
c. synthesizes double-stranded RNA from a DNA template.
d. transcribes mRNA from DNA.
e. none of the above
Answer: b. synthesizes double-stranded RNA from an RNA template.
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Ecology is best defined as the study of ________.
A. the interactions between living organisms and their environments B. the relationships between parasites and their hosts C. plant succession D. interactions between predator and prey populations
During this phase of the cell cycle the nuclear membrane reforms around the chromosomes:
A. Metaphase B. Prometaphase C. Telophase D. Anaphase E. Prophase
Mouse pigmentation is subject to epistasis of the B alleles by the d alleles. B (black) is dominant over b (brown), and
D is dominant over d. Homozygous d is epistatic to the black and brown genes. Given this information, what will result from a F1 cross between two mice?
a. 9/16 black, 3/16 brown, 4/16 white b. 9/16 white, 3/16 brown, 4/16 black c. 9/16 black, 6/16 brown, 1/16 white d. 9/16 white, 6/16 brown, 1/16 black e. All black mice
The __________ secretes aldosterone, which targets the kidney, and __________, the stress hormone.
Fill in the blank(s) with the appropriate word(s).