Which of the following is NOT a direct method to measure microbial growth?
A) direct microscopic count
B) standard plate count
C) filtration on a support membrane followed by incubation on medium
D) metabolic activity
E) most probable number (MPN)
D
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Which of the following occurs during systole?
A. Both ventricles contract. B. Both atria contract. C. The left ventricle contracts. D. The ventricles fill with blood. E. The atria fill with blood.
The above figure represents which of the following:a
a male with trisomy 21 b. a female with trisomy 21 c. a result caused by the use of colchicine d. a gorilla globin gene spread e. all of these
Bacteriophages attach to the cell walls of bacteria by envelope proteins
____________________ Indicate whether the statement is true or false.
Which term would be applied to a regulatory condition that occurs when protein is associated with a particular section of DNA and greatly reduces transcription?
A) induction B) reduction C) compression D) positive control E) negative control