Generall ymicrobiologists observe the colonial morphology of organisms on primary culture after how many hours of incubation/
A. 24-48 HOURS
B. 18-24 hours
C. 72 hours
D. 6-12 hours
Ans: B. 18-24 hours
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A. exactly two B. one or more C. two or more D. only one
Which of the following genera fix nitrogen nonsymbiotically?
A. Nitrosomonas B. Nitrobacter C. Rhizobium D. Azotobacter
Conditional mutations are more likely to result from a mutation caused by which of the following alterations to the coding region of a gene?
A) tautomeric shift B) deletion C) four bases added within a short region of a gene D) base addition E) X rays
Which of the following is a function of a signal peptide?
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