Question

Nucleotides contain a sugar, a phosphate group, and a nitrogenous base. Which of the following is a nitrogenous base?(1 point) Responses guanine guanine ribose ribose glucose glucose dexoyribose

Answer 1

The nitrogenous base among the options provided is **guanine**. The other options (ribose, glucose, and deoxyribose) are types of sugars, not nitrogenous bases.