Question

3. The ratio between phosphate sugar and nitrogen
base in ds-DNA
1) 1:1:1 2) 1:2:1 -3) 2:2:1 4) 3:1:1​

Answer 1

Answer:

1:1:1 is the option because it's dsDNA

Answer 2

The ratio between phosphate, sugar and nitrogen base in ds-DNA is 3:1:1

• Nucleoside triphosphate, sugar and nitrogen base are the building block for a DNA
• A nucleoside triphosphate is a molecule containing a nitrogenous base bound to a 5-carbon sugar, with three phosphate groups bound to the sugar.
• The nucleosides are consists of four nucleobases which are adenine(A), thymine(T), guanine(G) and cytosine(C).
• A DNA contain any of the four nucleobases which are attached with their 1' (for purines) or 9' (for pyrimidines) nitrogen atom to the 1' carbon atom of a deoxyribose molecule which is then bound to phosphate.
• The ratio of Phosphate, sugar and nitrogen base in a DNA is 3:1:1

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