How long are restriction endonuclease recognition sequences?
A) 4-12 nucleotides
B) 5 to 3 nucleotides
C) Length can vary by 100 nucleotides, depends on organism
A) 4-12 nucleotides
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For a freshwater fish, the output from the kidney in Figure 48-2 would be:
a. a small volume of hypotonic urine. b. a large volume of hypotonic urine. c. a small volume of hypertonic urine. d. a large volume of hypertonic urine. e. a small volume of isotonic urine.
You and your lab partner are observing a cell under a microscope, but you do not know whether it is a eukaryote or a prokaryote. Which of the following observations regarding the chromosomes would you use to immediately conclude that the cell is a
eukaryote? A) The chromosomes are circular in structure. B) The chromosomes are housed in a membrane-enclosed nucleus. C) The chromosomes contain very few proteins. D) The chromosomes are very simple in structure.
Opsonization is
A. the coating of a pathogen by complement to facilitate phagocytosis. B. the sticking of monocytes to the wall of the blood vessels at the site of infection. C. damage resulting in cell lysis. D. nonspecific leukocyte secretion of toxins onto the surface of virally infected cells. E. phagocyte receptors detecting PAMPs.
Please select all of the organisms on this list that belong to the protozoan class of apicomplexans.
> Cyclospora > Cryptosporidium > Giardia > Toxoplasma > Plasmodium