A) inside
B) outside
C) one base inside and the other outside
D) bases remain-in line of sugar phosphate
Correct Answer: D
Solution :
DNA a large molecule, is made up of a long chain of up to two lakhs nucleotide pairs Its molecular weight may be between 50,00000 to 9,00,00,000. Each nucleotides contain a nitrogenous base (pyrimidine or purines) a pentose sugar molecule and a phosphoric acid. Purine are adenine and guanine while pyrimidine are cytosine and thymine. Each nucleotide possess only one of the four bases. These nucleotide are attached with each other in a lever arrangement fashion through their sugar and phosphate molecule is sugar and phosphate form the backbone of DNA double helix, while base are projected in line of- sugar phosphate.You need to login to perform this action.
You will be redirected in
3 sec