Scientists commonly use bacteria in genetic engineering because bacteria
A.) naturally make insulin
B.) infect viruses
C.) mutate quickly
D.) can contain plasmids
Ans: D.) can contain plasmids
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Which of the following statements best describes the life cycles of charophyceans and mosses?
A. The diploid generation of charophyceans consists of only one cell whereas the diploid generation of mosses is multicellular. B. The haploid generation of charophyceans consists of only one cell whereas the haploid generation of mosses is multicellular. C. The haploid and diploid generations of charophyceans both consist of only one cell whereas both generations of mosses are multicellular. D. The haploid and diploid generations of both charophyceans and mosses are unicellular. E. All of the choices provided are incorrect.
A plant secretes ____ when it needs to respond
defensively to a pathogen. a. salicylic acid b. systemin c. brassinosteroids d. mineralocorticoids e. nitric oxide
What type of immunity results from vaccination?
A) innate immunity B) naturally acquired active immunity C) naturally acquired passive immunity D) artificially acquired active immunity E) artificially acquired passive immunity
List at least three posttranslational modifications known to occur as a newly synthesized protein matures
What will be an ideal response?