Is cytosine a purine or a pyrimidine? How can you tell?

Answer 1

Since cytosine is a pyrimidine, keep in mind that "PURe things are All Good" for purine = All Good (adenine and guanine) and "CUT the Py" (Cut the pie) for pyrimidine = CUT (cytosine, uracil, and thymine, respectively). I hope this helps.

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Answer 2

Cytosine is a pyrimidine. Pyrimidines have a single-ring structure, while purines have a double-ring structure.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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