DNA is associated with certain proteins, forming a complex called:a

chromosomes.
b. chromatin.
c. nucleoli.
d. nucleus.
e. genes


b

Biology & Microbiology

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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

Biology & Microbiology

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.

Biology & Microbiology

In __________ speciation, populations in contact along a common border speciate.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

What hormone regulates the metamorphosis of tadpoles into frogs?

A. Melatonin B. Cortisol C. Estrogen D. Somatotropin E. Thyroid hormone

Biology & Microbiology