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Nuetrik [128]
3 years ago
5

Science has shown that smoking causes cancer. Which is an example of how society responded to this information?

Biology
2 answers:
Mama L [17]3 years ago
6 0
D or C i dont know but i think D

Yuliya22 [10]3 years ago
6 0

The correct answer is (c) Warning labels are required on the packs of cigarettes.

There are more than 7000 chemicals found in cigarettes. Out of which 250 are known to be toxic in nature. One of the primary ingredients of cigarette tobacco is nicotine, which is highly addictive. Due to this even if the smoker want to quit, they crave for it. Smoking can increase the risk of cancer as it has carcinogenic properties. It can also cause emphysema and heart disease. There are warnings on the packs of cigarette that is injurious to health so that the people consuming it can get information about the ill effects. The picture on the pack was made to make people aware that smoking can cause cancer.

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Answer/Explanation:

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A. DNA polymerase avoids the incorporation of improperly paired nucleotides in two ways:

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B. Ribonucleotides are the nucleotides that are incorporated into a growing RNA molecule. They are different from deoxyribonucleotides because of the differences in the sugar backbone (ribose vs deoxyribose). Their incorporation would disrupt the structure and function of the DNA, leading to problems with transcription and replication.

DNA polymerase avoids incorporating these nucleotides primarily because of the structure of the enzyme. Ribonucleotides cannot fit into the active site of DNA polymerase due to what is called a "steric filter" or "steric gate". This gate/filter function is performed by specific amino acid residues which usually have a bulky side chain and thus block the incorporation of the 2'OH of the ribose sugar (which is lacking in the deoxyribose sugar)

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Answer:

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Explanation:

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