Antibacterial drugs can:
a) Inhibit cell wall synthesis.
b) Inhibit bacterial protein synthesis.
c) Inhibit bacterial transcription.
d) Perform all of the above tasks.
Answer: d) Perform all of the above tasks.
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The pH of unpolluted rainwater is closest to:
a. 2 b. 4 c. 6 d. 8 e. 10
What is the difference between a gene that is derepressed and one that is induced?
A. Genes that are derepressed are turned on because an inducer molecule is present. By comparison, a gene that is induced is turned on because a repressor protein is bound to the operator. B. There is no difference between a gene that is derepressed and one that is induced. C. A gene that is derepressed is turned on because a repressor protein is not bound without its cofactor. By comparison, a gene that is induced is turned on because an inducer molecule prevents binding of the repressor. D. A derepressed gene is turned off and an induced gene is activated to be expressed.
A polysaccharide that is made by plants and can usually be digested by humans is ________
Fill in the blank(s) with correct word
Complete catabolism of lactose requires ________.
A. ATP, NAD, and appropriate enzymes B. NAD and appropriate enzymes C. ATP, UTP, NAD, and appropriate enzymes