Explain how ozone is both beneficial and detrimental to human health

There are both good ozone, and bad ozone. The good ozone help prevent uv rays from entering the earth, preventing skin cancer and other diseases. It is harmful by containing all the pollution and chemicals . That damages our lungs and causes chest pain, coughing, etc.

Explanation:

The first half i wrote, the second half was copied by the person above me.

the answer would be 2, if crossing over doesn’t occur 2 out of 4 of the daughter cells will have that allele.

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