A virus differs from a bacterium in that a virus ________

A) develops resistance to antibiotics
B) is not a living organism
C) causes pneumonia
D) does not have DNA or RNA


B

Biology & Microbiology

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A double stranded DNA strand contains 26 pyrimidines. How many purines will the copied strand contain?

A. 0 B. 13 C. 26 D. 52

Biology & Microbiology

The endoplasmic reticulum is composed of flattened sacs called

A. vacuomes. B. cristae. C. thylakoids. D. cisternae.

Biology & Microbiology

The first enzymes were probably:a

protein reproducing enzymes. b. RNA degrading enzymes. c. DNA synthesis enzymes. d. ribozymes. e. RNA synthesis enzymes

Biology & Microbiology

Draw a diagram of a typical neuron, label its parts, and list the function of each labeled structure. What will be an ideal response?

Biology & Microbiology