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9. Base pairs in a DNA strand are held together by what type of bond? A. covalent C, helical B. hydrogen D. ionic 10. Which one is the difference between DNA and RNA?​

Sagot :

Answer:

9. B. Hydrogen

- The two strands are held together by hydrogen bonds between the bases, with adenine forming a base pair with thymine, and cytosine forming a base pair with guanine.

10. walang letter?but here is the explanation.

- DNA contains the sugar deoxyribose, while RNA contains the sugar ribose. ... DNA is a double-stranded molecule, while RNA is a single-stranded molecule. DNA is stable under alkaline conditions, while RNA is not stable. DNA and RNA perform different functions in humans.