Question

enzymes that break down dna catalyze the hydrolysis of the covalent bonds that join nucleotides together. what would happen to dna molecules treated with these enzymes?

Answer 1

DNA is a long polymeric chain with simpler units called nucleotides. The backbone of DNA is made up of sugar and phosphate connected by sugar phosphate bonds called phosphodiester bond.  Enzymes called restriction  enzymes  catalyze the hydrolysis of phosphodiester bond of each strand hence this breaks the sugar phosphate bond separating out the individual nucleotides.

Answer 2

The long polymeric chain with the simpler units called nucleotides is called as DNA.

The DNA’s backbone is made up of sugar and phosphate which are connected by the sugar-phosphate bonds.

The restriction enzymes break the sugar-phosphate bond and separate the individual nucleotides.

This enzyme catalyzes the hydrolysis of the phosphodiester bond.