Aflatoxins are planar, ringed compounds that interact with DNA by ________ and cause frameshift mutations.
A. rearrangement
B. deletion
C. substitution
D. intercalation
Answer: D
Biology & Microbiology
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A. observed in the experimental group. B. not observed in the control group. C. the result of the independent variable. D. All of these statements are true.
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Viroids characteristically are composed of
A. ssRNA. B. dsRNA. C. ssDNA. D. dsDNA.
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The majority of Drosophila embryo segments will become part of the ________ in an adult fly.
A. abdomen B. thorax C. head D. head or thorax E. bithorax complex
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The primary consumers in natural communities are
a. herbivores. b. carnivores. c. scavengers. d. decomposers. e. all of these.
Biology & Microbiology