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olchik [2.2K]
3 years ago
12

"tobacco smoke is responsible for what percentage of lung cancer deaths?"

Biology
1 answer:
-BARSIC- [3]3 years ago
7 0
It has been estimated that active tobacco smoking causes close to 90% of lung cancer cases and is the cause of 87% of lung cancer deaths.
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Which nucleic acid is pictured on the right? Justify your answer.
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Answer:

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Explanation:

Since we only have one strand shown, I'm going to assume it is RNA. Both DNA and RNA have nucleic acids, but RNA has 1 different nucleic acid; it replaces Thymine with Uracil. So the 4 nucleic acids are uracil, adenine, guanine, and cytosine.

If the picture shown is a cross-section of DNA, then our 4 nucleic acids are adenine, thymine, guanine, and cytosine.

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