Which is the last step in the production of a recombinant DNA plasmid?
A) cloning
B) using DNA ligase to join DNA fragments
C) cutting the gene of interest into fragments
D) allowing the reproduction of the bacterium bearing the recombinant plasmid
B) using DNA ligase to join DNA fragments
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Host defense mechanisms—ways in which the body protects itself from pathogens—can be thought of as an army consisting of how many lines of defense?
A) 2 B) 3 C) 4 D) 5
Bacteria have been used to help produce or modify food products
A. for several thousand years. B. since the Middle Ages. C. since the late 1800s. D. since the 1950s.
When multiple color forms of an organism exist in a population, the least abundant form is likely to
increase in frequency.
Indicate whether the statement is true or false.The method of removing vegetative life forms from living surfaces is termed ________.
A. disinfection B. decontamination C. antisepsis D. sterilization