All of the following are essential amino acids except
a. alanine.
b. lysine.
c. methionine.
d. threonine.
a. alanine.
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________ and ________ can be used to prevent influenza A infections, reducing the incidence of influenza by 50 to 70% in an exposed population.
What will be an ideal response?
The oxidation of ________ occurs both biotically and abiotically; however, at ________ pH values biotic oxidation is more common
A) Si / low B) ammonia / high C) Fe2+ / low D) Hgo / low
Which of the following is not necessary for a DNA polymerase reaction?
A. template DNA B. primer strand C. ATP D. dNTPs E. All of these components are necessary.
If you were observing a newly discovered animal and wanted to determine if it reproduces sexually or asexually, you could
A. perform genetic screening on the parents and offspring to see if the offspring are genetically identical to parents. B. examine males to see if sperm can be produced. C. try to observe mating behavior. D. look carefully for nests with eggs. E. None of the answer choices is correct.