What is the proteinaceous infectious agent of scrapie called?

a. a virus
b. a viroid
c. a bacterium
d. a prion
e. a parasite


Ans: d

Biology & Microbiology

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Cancer cell aneuploidy (the gain or loss of chromosomes) is most likely caused by

a defect in A) RB. B) p53. C) Myc. D) BCL2. E) Mad.

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Both the neural and endocrine systems play a role in coordinating body activities.

Answer the following statement true (T) or false (F)

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For the clade of winged organisms, which of the following would be considered the outgroup?

A. Insect B. Bat C. Eagle D. Penguin E. Honeycreeper

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