BIOMOLECULES AND ENZYMES

Detailed explanation-1: -hydrogen. 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 complementary pairing.

Detailed explanation-2: -The two strands are held together by hydrogen bonds between pairs of bases: adenine pairs with thymine, and cytosine pairs with guanine.

Detailed explanation-3: -Answer and Explanation: The answer is B: hydrogen bonds are easier to break allowing for DNA copying. Hydrogen bonds formed between complementary base pairs on opposite DNA strands form the “rungs on a ladder” portion of DNA’s double-helical structure.

Detailed explanation-4: -Hydrogen bonding in DNA The complementary base pairs of guanine with cytosine and adenine with thymine connect to one another using hydrogen bonds. These hydrogen bonds between complementary nucleotides are what keeps the two strands of a DNA helix together.

Detailed explanation-5: -The two complementary strands of DNA are held together by hydrogen bonds between complementary nucleotides (A&T, C&G).