As the guard cells ________, the stomata become ________
A) swell; open
B) shrink; open
C) swell; closed
D) shrink; larger
A
Biology & Microbiology
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Which of the following is LEAST commonly associated with endospore-forming bacteria?
A) coccus-shaped B) defense C) dormancy D) saprophytic
Biology & Microbiology
In bacteria, restriction enzymes function to ____
a. identify sequences of interest in a DNA library b. produce human proteins c. provide antibiotic resistance d. chop up invading viral DNA e. make the cells vulnerable to viruses
Biology & Microbiology
The X-inactivation center gene is
A) SRY. B) XIC. C) Xce. D) MATa. E) Xist.
Biology & Microbiology
How many stop codons are there in the genetic code?
A. five B. one C. four D. two E. three
Biology & Microbiology