Chapter 9: Problem 12

Cytosine may also be named 2 -oxy- 4 -amino pyrimidine. How would you name the other four nitrogenous bases, using this alternative system? \(\left(\mathrm{CH}_{3} \text { is methyl. }\right)\)

Short Answer

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Question: Name the other four nitrogenous bases using the alternative naming system as shown for cytosine - "2-oxy-4-amino pyrimidine". Answer: The other four nitrogenous bases using the alternative naming system are as follows: 1. Adenine: 6-amino purine 2. Guanine: 2-amino-6-oxy purine 3. Thymine: 2,4-dioxy-5-methyl pyrimidine 4. Uracil: 2,4-dioxy pyrimidine

Step by step solution

Identify Nitrogenous Bases

The nitrogenous bases in DNA and RNA are adenine (A), guanine (G), cytosine (C), thymine (T), and uracil (U). Thymine is only found in DNA, while uracil is only found in RNA. We have already been given the name for cytosine.

Identify Functional Groups

For each nitrogenous base, we need to identify the functional groups present and their position on the pyrimidine or purine structure. 1. Adenine: 6-amino purine 2. Guanine: 2-amino-6-oxy purine 3. Thymine: 2,4-dioxy-5-methyl pyrimidine 4. Uracil: 2,4-dioxy pyrimidine

Naming the Nitrogenous Bases

Using the alternative naming system, we can enumerate the functional groups for each base as follows: 1. Adenine: 6-amino purine 2. Guanine: 2-amino-6-oxy purine 3. Thymine: 2,4-dioxy-5-methyl pyrimidine 4. Uracil: 2,4-dioxy pyrimidine

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Cytosine may also be named 2 -oxy- 4 -amino pyrimidine. How would you name the other four nitrogenous bases, using this alternative system? \(\left(\mathrm{CH}_{3} \text { is methyl. }\right)\)

Short Answer

Step by step solution

Identify Nitrogenous Bases

Identify Functional Groups

Naming the Nitrogenous Bases

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