Which of the following organisms is BSL-2?
A) Staphylococcus aureus
B) Lactococcus lactis
C) Staphylococcus epidermidis
D) Escherichia coli
E) Klebsiella aerogenes
F) Pseudomonas fluorescens
G) None of these
A) Staphylococcus aureus
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The first patent on a living organism was granted in
A) 1790, when the U.S. passed patent law. B) 1873, for Louis Pasteur's use of yeast. C) 1900, when Mendel's laws were rediscovered. D) 1978, when modern biotechnology began with recombinant insulin.
In the case of genetic exchange in bacteria by transformation, there is an exchange of DNA back and forth between cells, and a complete diploid cell is formed
Indicate whether the statement is true or false
A researcher suspects that the food in an ecosystem has been contaminated with radioactive phosphates over a period of months. Which of the following substances could be examined for radioactive phosphate to test the hypothesis?
A) the DNA of the organisms in the area B) the amino acids within proteins produced by organisms living in the area C) the starch produced by plants in the area D) All of the above are true.
Which of the following is not a common system for generating knock-out organisms?
A) transformation B) cre-lox C) homologous recombination D) CRSPR-CAS