BIOMOLECULES AND ENZYMES

Detailed explanation-1: -The phosphate backbone of DNA is negatively charged, which is due to the presence of bonds created between the phosphorus and oxygen atoms.

Detailed explanation-2: -From our table of polyatomic ions we know that phosphate has a-3 charge. Since there are two phosphate ions, the total negative charge is-6.

Detailed explanation-3: -The sugar-phosphate backbone is negatively charged and hydrophilic, which allows the DNA backbone to form bonds with water.

Detailed explanation-4: -A nucleoside is essentially a nucleotide minus the phosphate group. A nucleotide has a nitrogenous base, a pentose sugar (ribose or 2′-deoxyribose), and one or more phosphate groups, while a nucleoside consists of the nitrogenous base and pentose sugar.

Detailed explanation-5: -Nucleotides (Nitrogenous base+Phosphate+Pentose) are negatively charged due to the phosphate group that is formed during the production of DNA.