All protein building occurs through two principal steps, which are
Answer: Transcription and translation
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Actinomycetes form long filaments called ________.
Fill in the blank(s) with the appropriate word(s).
Consider the life cycle shown in Figure 27-2. If the boxes labeled “n” and “2n” represent multicellular structures, this life cycle could be representative of all of the following except:
a. ferns
b. club mosses.
c. horsetails.
d. hornworts.
e. algae
What is combination drug therapy?
A) a succession of drugs to combat an infection–as the infecting microorganism becomes resistant to one drug, the patient is put on another B) a mixture of drugs and homeopathic medications C) a mixture of several different kinds of drugs given simultaneously D) one drug that has a combination of effects
Animals have enzymes that break apart starch molecules but not cellulose, despite the fact that both are made up of glucose subunits. Which enzyme characteristic best explains this?
A) Enzymes are not permanently changed by the reactions they promote. B) All enzymes are proteins. C) Enzymes are highly specific. D) Enzyme activity is regulated. E) Enzymes usually speed up chemical reactions.