What holds together adenine and thymine?
- Correct Answer: helium bonds
- covalent bonds
- potassium bonds
- hydrogen bonds
Explanation: The base-pairing nature of DNA. Adenine always pairs with thymine, and they are held together with two hydrogen bonds. The guanine-cytosine base pair is held together with three hydrogen bonds. Note that one sugar-phosphate backbone is in the 5’ → 3’ direction, with the other strand in the opposite 3’ → 5’ orientation. Notice that the 5'-end begins with a free (not attached to the sugar of another nucleotide) phosphate group, while the 3'-end has a free (not attached to the phosphate group of another nucleotide) deoxyribose sugar.
More Random Questions
Ans: Slovenia
Ans: Virat Kohli
Ans: Salbutamol
Ans: Madhura
Ans: 77 years
Ans: New York
Ans: Gujarat
Ans: Riya Singha
Ans: hydrogen
Ans: Virechana
Ans: Oxford University
Ans: Double-digit
Ans: Magnus Carlsen
Ans: Vitul Kumar
Ans: sperm only