Answer:
HYDROGEN BONDS
Explanation:
A DNA molecule consists of two strands of nucleotides twisted together to form a double helix. The sugar-phosphate backbone is found on the outside of this helix and the bases are found braching towards the middle. Hydrogen bonds join the the nitrogenous bases and hold the two strands together.
Answer: Hydrogen bond
Explanation: Hydrogen bonds join the the nitrogenous bases and hold the two strands together.
