Question

If a DNA molecule contain 125 adenine and 250 cytosine bases. The total number of sugar molecules in this DNA fragment are....
1. 375
2. 500
3. 750
4. 250​

Answer 1

adenine = guanine. and cytosine= = thymine

adenine + guanine = 125 + 125 = 250

cytosine + thymine = 250 + 250 = 500

so total no. of sugar molecules in DNA = adenine + guanine + thymine + cytosine = 250 + 500

= 750

hope it helps

Answer 2

750 is the answer.......