Posted: July 25th, 2017

A new opportunistic pathogen has been isolated from the stool of HIV-infected patients with persistent diarrhea. Microscopic examination indicates that this microorganism is spherical with a diameter of 3 to 5 μ. The presence of which of the following suggests that this is a eukaryotic microorganism?

A new opportunistic pathogen has been isolated
from the stool of HIV-infected patients with
persistent diarrhea. Microscopic examination
indicates that this microorganism is spherical
with a diameter of 3 to 5 μ. The presence of
which of the following suggests that this is a
eukaryotic microorganism?
(A) Cell membrane
(B) DNA
(C) Introns in genes
(D) Messenger RNA
(E) Ribosomes