Which of the following is found exclusively in RNA?

A) thymine
B) guanine
C) uracil
D) adenine
E) cytosine


Answer: C

Biology & Microbiology

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The zenk gene in the zebra finch brain is activated by tactile stimuli

a. True b. False

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________ is the transfer of recombinant DNA into an individual's body in an attempt to correct a genetic defect

a. Gene therapy b. Polymerase chain reaction c. DNA sequencing d. Recombinant DNA e. In vitro fertilization

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The morphological approach to speciation is prone to misinterpretation. Which of the following is not

an example?

a. male birds with strikingly different plumage than females b. a chihuahua and a great dane that do not look alike c. snails that resemble each other, but cannot mate d. snails of quite varied appearance that can all interbreed e. snails of quite similar appearance that are shown to be different species via reproductive isolation

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Describe the chemical properties of phospholipids that account for their behavior in water.

What will be an ideal response?

Biology & Microbiology