A urine specimen from a maternity patient with the complaint of cystisis was recieved in the lab. The culture of tis sample grew a lactose- positive. Gram negative bacillys that was presumtively identified as E. Coli. On differential and selective media this organism would demonstrate which reaction?

A. Hektoen Enteric Agar= green/colorless colonies with black centers
B. MacConkey Agar= Colorless colonies
C. xylose-lysine-Desoxycholate Agar= yellow colonies
D. Xylose-Lysine Desoxychocolate Agar= colorless colonies


Answer: C. xylose-lysine-Desoxycholate Agar= yellow colonies

Biology & Microbiology

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A consequence of asexual reproduction in a plant is that __________.

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In what portion of a eukaryotic cell is the majority of DNA isolated?

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