Question

Question:

The two chains of DNA are held together by what type of bomds?


Ionic bonds

Covalent bonds

Disulphide bonds

Hydrogen bonds​

Answer 1

red blood cells help in make of blood

and white blood are the warriors which protect our body

Explanation:

Answer 2

Answer:

covalent bonds

Explanation:

covalent bonds occur within each linear strand and strongly bond the bases , sugars and phosphate groups ( both within each component and between components ). hydrogen bonds occur between the two strands and involve a base from one strand with a base from the second in complimentary pairing.