An organism originally has a diploid number of 66 chromosomes. No meiosis occurs in this organism (gametes are diploid). Assume that the polyploid organism produced by union of the gametes is viable, and that the resulting organism also does not carry out meiosis. Also assume that this is true for future offspring of these organisms. If these organisms continue to mate, how many chromosomes will be found in a cell of the original organism's great grandchild?
A) 33
B) 66
C) 132
D) 264
E) 528
F) 1,056
E) 528
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Lithoautotrophs use inorganic nutrients for carbon and energy sources.
Answer the following statement true (T) or false (F)
The drug level required for the clinical treatment of a particular infection is called the ________.
A. therapeutic dose B. therapeutic index C. toxic dose D. minimal inhibitory concentration
Herbivores would usually be placed in which trophic level?
A) third B) either the third or fourth C) second D) fourth E) first
Where might you find microbes like bacteria and fungi? (Choose all that apply)
> In soil > In many places within your body > On your skin > On the inside of a sterile agar plate that has not been inoculated > On a disinfected lab bench > In the air > In sterilized growth medium prior to inoculation > On the inside of a nutrient agar plate that has been left open for several minutes > On your phone