Which of the Following Are Nitrogenous Bases of the Purine

question 81

Multiple Choice

Which of the following are nitrogenous bases of the purine type?

• A) cytosine and guanine
• B) guanine and adenine
• C) adenine and thymine
• D) thymine and uracil
• E) uracil and cytosine

---

Definitions:

Sound Wave

A type of pressure wave generated by vibrating objects, which travels through a medium (such as air or water) and is perceived as sound when it reaches a human ear.

Timbre

The quality of a sound that distinguishes it from other sounds of the same pitch and volume.

Sound Wave

A type of pressure wave caused by the vibration of an object, which travels through a medium (such as air) and is perceived as sound when it reaches a human ear.

Frequencies

The number of occurrences of a repeating event per unit of time, often used in the context of sound waves or electromagnetic waves.