DNA is associated with certain proteins, forming a complex called:a
chromosomes.
b. chromatin.
c. nucleoli.
d. nucleus.
e. genes
b
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Assuming that a clean-catch midstream urine was processed in the Clinical Microbiology Laboratory (CML), which one of the following colony counts is (are) indicative of a urinary tract infection?
A) 10,000 CFU/mL B) 100,000 CFU/mL C) >100,000 CFU/mL D) both b and c
The reaction phosphoenolpyruvate + ADP ? pyruvate + ATP (? G = -7.5 kcal/mole)
A. is not spontaneous. B. involves the transfer of a phosphate to phosphoenolpyruvate. C. involves the transfer of energy from ATP to phosphoenolpyruvate. D. is an endergonic reaction. E. is an exergonic reaction.
In __________ speciation, populations in contact along a common border speciate.
Fill in the blank(s) with the appropriate word(s).
What hormone regulates the metamorphosis of tadpoles into frogs?
A. Melatonin B. Cortisol C. Estrogen D. Somatotropin E. Thyroid hormone