What are nucleolar organizer regions?

What will be an ideal response?


nuclear regions containing the DNA that issues genetic instructions for synthesizing ribosomal RNA

Anatomy & Physiology

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Dr. Sweet performs both ________________________________________ and ________________________________________ surgery

Fill in the blank(s) with correct word

Anatomy & Physiology

Fat-soluable vitamins, such as A, D, and E, are best absorbed when you take them with a high fat mean.

a. true b. false

Anatomy & Physiology

Why is the contraction strength of smooth muscle relatively independent of its resting length?

A. It does not have intercalated discs. B. It is regulated by a length-tension relationship. C. It gets nearly all of its Ca2+ from the extracellular fluid. D. It does not have sarcomeres. E. It is involuntary muscle.

Anatomy & Physiology

When antigens bind to inactive B cells and are brought into the cell by endocytosis to be displayed on the Class II MHC proteins this results in ________ of the B cells

A) activation B) sensitization C) co-stimulation D) cloning E) division

Anatomy & Physiology