Question

question 36
dnas base pairs are joined by:
a hydrogen bonds
b covalent bonds
c ionic bonds
d weak bonds

question 37
identify the correct nucleotide base pairing.
a a - c; g - t
b a - g; c - t
c a - t; g - c
d a - a; t - t
e a - g; a - c

Explanation:

• Question 36: DNA base pairs (A - T and G - C) are joined by hydrogen bonds. Covalent bonds are within nucleotides (sugar - phosphate backbone), ionic bonds are not relevant here, and "weak bonds" is too vague compared to the specific hydrogen bond.
• Question 37: In DNA, adenine (A) pairs with thymine (T) and guanine (G) pairs with cytosine (C).

Answer:

• Question 36: A. Hydrogen bonds
• Question 37: C. A - T; G - C