Plants are different from all other photosynthetic organisms in that they:
A) have photosynthetic pigments. B) develop from embryos.
C) are green. D) are eukaryotic.
Answer: B
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What is the main difference between mismatch repair (MMR) in eukaryotes and prokaryotes?
A. Eukaryotes lack a functional Mut H and Dam methylase. B. Eukaryotes have proteins homologous to MutS and MutH but not MutL. C. Eukaryotes only repair the lagging strand. D. Prokaryotic MMR can repair small loops of unpaired nucleotides, whereas eukaryotes cannot. E. Both use exonucleases to eliminate the mismatched strand but eukaryotes only require 3'-5' exonucleases.
If a compost pile is turned frequently and other conditions are adequate for aerobic digestion, the composting can be completed in
A. 1 day. B. 1 month. C. six weeks. D. six months.
The toxins involved in intestinal infections typically
A. kill cells by inhibiting protein synthesis. B. modify cell physiology resulting in increased secretion of water and electrolytes. C. modify cell physiology resulting in decreased secretion of water and electrolytes. D. kill cells by inhibiting DNA synthesis. E. kill cells by inhibiting protein synthesis AND modify cell physiology resulting in increased secretion of water and electrolytes.
oxygen concentration
What will be an ideal response?