Lipid-soluble signaling molecules, such as testosterone, cross the membranes of all cells but affect only target cells because
Lipid-soluble signaling molecules, such as testosterone, cross the membranes of all cells but affect only target cells because
only target cells retain the appropriate DNA segments. |
most cells lack the Y chromosome required. |
only target cells possess the cytosolic enzymes that transduce the testosterone. |
only in target cells is testosterone able to initiate the phosphorylation cascade leading to activated transcription factor. |
intracellular receptors are present only in target cells. |