The simplest viruses consist of ________.

A. RNA only
B. RNA or DNA in a protein coat covered with lipid envelope
C. protein only
D. RNA, DNA, and enzymes in a protein coat with a lipid envelope
E. RNA or DNA in a protein coat


Answer: E

Biology & Microbiology

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A ________, a ________, and a ________ are the major parts of a nucleotide, whereas a ________ and a ________ are the major parts of a nucleoside.

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

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Overproduction of _____ causes gigantism

a. growth hormone c. insulin b. cortisol d. melatonin

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The helix structure on the right of the above

figure represents a. DNA. b. RNA. c. lipid. d. protein. e. phospholipid

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It is best to receive an organ transplant from a donor who ________

A) looks like you B) rarely consumes alcohol C) does not have any allergies D) best matches your self proteins

Biology & Microbiology