In humans, the spermatogonia divide __________ twice to form four identical primary __________

Fill in the blank(s) with correct word


mitotically; spermatocytes

Anatomy & Physiology

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The _____ nerve is responsible for movement of the tongue.

Fill in the blank(s) with the appropriate word(s).

Anatomy & Physiology

The primary target of the human immunodeficiency virus is the ________.

A. helper T lymphocyte B. memory cell C. macrophage D. plasma cell

Anatomy & Physiology

Molecule X is some sort of chemical messenger.  Its receptor resides within the nucleus and once the receptor is bound to X, gene transcription occurs.  Molecule X might be a(n)

A. ion. B. hydrophilic protein. C. large protein. D. hydrophilic carbohydrate. E. lipid/steroid.

Anatomy & Physiology

Which one of the following is NOT typical of the changes that follow the binding of a hormone to its target cells?

A) Plasma membrane permeability changes. B) Cellular mutations occur. C) Enzymes are activated or inactivated. D) Mitosis is stimulated. E) Proteins are synthesized in the cell.

Anatomy & Physiology