Fast easy question, plz answer, and thx for helping

What problem would a person have if the nucleic acid in one of his or her cells were damaged?

Which substances have the lowest melting points: ionic covalent, or metallic

Which of the following contributes to the structural rigidity of cellulose? adjacent glucose polymers are stabilized by hydrogen bonding. glucose residues are joined by (α1→4) linkages. cellulose is a highly branched molecule. the conformation of the glucose polymer is a coiled structure.