Cats are an essential part of the life cycle of

a) Trypanosoma cruzi.
b) Toxoplasma gondii.
c) Plasmodium vivax.
d) Leishmania donovani.


Ans: b) Toxoplasma gondii.

Biology & Microbiology

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Which of the following viral diseases has been acquired in the United States by handling pet prairie dogs?

A) chickenpox B) hantavirus C) monkeypox D) smallpox

Biology & Microbiology

A short RNA chain is synthesized as the first nucleotides in a new DNA strand by the enzyme ____ to provide a ____

for DNA elongation.

a. topoisomerase; 3¢ hydroxyl group b. primase; 3¢ hydroxyl group c. primase; 5¢ hydroxyl group d. DNA polymerase; 5¢ phosphate group e. DNA polymerase; 3¢ hydroxyl group

Biology & Microbiology

Most CO2 reacts with water inside red blood cells to form bicarbonate, due to the activity of

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

Biology & Microbiology

The volume of air remaining in the lungs after maximal expiration is the:a

vital capacity. b. tidal volume. c. tidal capacity. d. residual capacity. e. residual volume.

Biology & Microbiology