4. When one nucleotide contains adenine, what type of base is the adenine attached to on the
opposite nucleotide strand?

Thymine

Explanation:

DNA nucleotide bases always attach in specific pairs.

Adenine is always with Thymine and Cytosine is always with Guanine. Here, since one nucleotide is Adenine, we know the other nucleotide is Thymine.

One way to remember this pairing is by this device:

Car in the Garage (cytosine goes with guanine)

and

Apple on the Tree (adenine goes with thymine)

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consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.