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What is a naturally occurring gas that's found in most soils and rocks and can cause lung cancer
answered
Feb 23, 2017
Physics
high-school
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A mutation changes the DNA sequence AAGCCTGGCAAT to the new sequence AAGCCTGCGCAAT. What kind of mutation has occurred? A. deletion B. insertion C. duplication D. substitution
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Dec 26, 2016
Biology
high-school
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14.5k
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