Question

chapter 2 basic chemistry 27
figure 2 - 5

1. name the bonds that help to hold the two dna strands together. ____________
2. name the three - dimensional shape of the dna molecule. ____________
3. how many base pairs are present in this segment of a dna model? ____________
4. what is the term that describes the pattern or base - pairing? ____________

Explanation:

1. Hydrogen bonds hold DNA strands.
2. Double - helix is the shape.
3. Counting shows 10 base pairs.
4. Complementary base - pairing is the term.

Answer:

1. Hydrogen bonds
2. Double - helix
3. 10
4. Complementary base - pairing