Biology, 17.06.2021 23:10 jazariondaniely02
You LOVE spinach. This morning you heard on the news that E. coli O157:H7 has
contaminated 90% of the spinach crops in your area. E. coli 0157:H7 is a pathogenic strain of bacteria that has acquired a gene that produces a toxin that gives people hemorrhagic diarrhea.
You are bummed because you CAN'T live without your spinach! You recently began working in a lab that has a PCR machine that you can use. Explain how you could use PCR to determine if
the spinach you have is infected with E. coli 0157:H7 or not.
Answers: 3
Biology, 22.06.2019 13:20
Imagine a self-reactive t cell that has not undergone clonal deletion in the thymus (that is to say, it has escaped central tolerance). if it encounters self antigen in the absence of an infection or inflammation, what will happen to this self-reactive t cell? (select two answers) (a) the t cell undergoes clonal expansion. (b) the t cell gains effector functions. (c) the t cell undergoes apoptosis. (d) the t cell becomes activated. (e) the t cell becomes anergic.
Answers: 1
You LOVE spinach. This morning you heard on the news that E. coli O157:H7 has
contaminated 90% of t...
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