Can someone help me label these. The options are Deoxyribose sugar, guanine, phosphate, and adenine.

1. Phosphate

2. Guanine

3. Deoxyribose sugar

4. Adenine

Explanation: Remember the base pairing rules: cytosine with guanine and adenine with thymine, so whenever there's cytosine, there's guanine, and vice versa (the rules are a little different with adenine and thymine in terms of RNA). In the phosphate-sugar backbone, the phosphate will always be on the outside, and the sugar will always be found attached to the nitrogenous base.

Hope this helps,

Lacia

cell regulation is conducted by special proteins.

1. efficient use of space

2. elimination of groundwater contamination

3. energy generation

4. lower carbon footprint