administrators Reply Quote

Answer : 1 Nucleotides Explanation : Answer: A) Nucleotides Explanation: DNA is a very long chain polymer made up of thousands of repeating units called nucleotides.  Nucleotide Unit is composed of a phosphate group, a pentose sugar, and a nitrogenous base. The sides of the DNA ladder are made up of alternating deoxyribose sugar -- phosphate group units.

Click here to see the full blog post