Adenine and guanine are ________  and cytosine and thymine are ________.

What will be an ideal response?


purines; pyrimidines
purines, pyrimidines
purines pyrimidines
purines/pyrimidines

Anatomy & Physiology

You might also like to view...

Two notable exceptions to the overall neutral environment in the human body are the stomach and the

A) testis. B) ovaries. C) vagina. D) prostate gland. E) uterus.

Anatomy & Physiology

Which structure lies posterior to the bladder and anterior to the rectum and secretes an alkaline, fructose filled fluid?

a) Prostate b) bulbourethral gland c) Seminal vesicles d) Spongy urethra e) Prostatic urethra

Anatomy & Physiology

What are the two attachments of skeletal muscles?

What will be an ideal response?

Anatomy & Physiology

What kind of receptor responds to acetylcholine released by all autonomic preganglionic fibers?

a. muscarinic cholinergic receptors b. ?1 adrenergic receptors c. ?2 adrenergic receptors d. ?1 adrenergic receptors e. nicotinic cholinergic receptors

Anatomy & Physiology