Which nucleotide is found in RNA but not in DNA?
A) adenine
B) thymine
C) cytosine
D) uracil
Answer: D) uracil
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The end of the nucleic acid chain that grows by adding more nucleotides is always the
A. 5 prime end. B. C terminal. C. N terminal. D. 3 prime end.
When step "d" is completed, the two DNA molecules produced will be
a. identical to each other but not to the parent DNA. b. identical to the parent DNA but not to each other. c. different from each other and the parent DNA. d. identical to each other and to the parent DNA. e. identical to each other and almost the same as the parent DNA.
The time it takes for cells to divide
A. varies, but it takes sophisticated equipment to measure this small difference. B. depends on the health and environment of the cell. C. does not vary at all, but is controlled by an internal clock. D. varies widely and unpredictably in cells of the same local area of the same organism during any specific time period.
Discuss five of the reasons why infectious diseases are increasing in number around the world.
What will be an ideal response?