An autocrine is:Question 7Select one:a.All of the others are correctb.An autocrine is a chemical signal released intra-cellularly, designed to influence gene expression directlyc.A chemical signal secreted by a cell that acts both locally and as a hormoned.A chemical signal secreted by a cell that is designed to bind to cell membrane receptors on adjacent cellse.A chemical signal secreted by a cell that binds to cell membrane receptors on that same cell

The correct answer is: a. All of the others are correct.

Here's why:

b. An autocrine is a chemical signal released intra-cellularly, designed to influence gene expression directly. This is true because autocrine signaling involves the release of a signal molecule that can bind to receptors on the same cell, influencing its behavior.

c. A chemical signal secreted by a cell that acts both locally and as a hormone. This is also true. Autocrine signals can act locally on the cell that produces them, but they can also act more broadly as hormones, influencing the behavior of other cells.

d. A