Draw a schematic diagram of a part of double stranded dinucleotide DNA chain having all the four nitrogenous bases and showing the correct polarity.

Explanation

To draw a schematic diagram of a part of a double-stranded dinucleotide DNA chain that includes all four nitrogenous bases and shows the correct polarity, follow these steps:

### Step-by-Step Solution:

1. **Draw the Sugar-Phosphate Backbone:**
- Start by drawing two vertical lines to represent the sugar-phosphate backbone of the DNA.
- Each line will represent one strand of the DNA.

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