Question

the two dna strands are held together by ______ bonds between bases on the two strands. ionic hydrogen peptide covalent need help? review these concept resources. rate your confidence to submit your answer. high medium low reading

Explanation:

In DNA, the two strands are held together by hydrogen bonds between complementary base - pairs (adenine - thymine and cytosine - guanine). Ionic bonds are not involved in holding DNA strands together. Peptide bonds are found in proteins, not in DNA structure for strand - to - strand connection. Covalent bonds are within each DNA strand, not between the two strands to hold them together.

Answer:

B. hydrogen