Which bonds are broken by the strong acid step?

Covalent bonds between sugar and phosphate groups in upright of DNA double strand.

Explanation:

In DNA covalent bonds of sugar and phosphate are strong bonds which can be broken by acid step. These bond are strong covalent bonds which consists of carbon atoms combined with molecule of atom. In sugar the carbon atom cannot gain or loose electron. The bond formed by carbon atom is covalent bond only.

a plasma is a warm ionized gasoline consisting of approximately equal numbers of definitely charged ions and negatively charged electrons. the characteristics of plasmas are notably unique from the ones of ordinary neutral gases in order that plasmas are considered a awesome "fourth kingdom of remember."

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