A cell culture is where cells are grown under controlled conditions.

A cell culture is where cells are grown under controlled conditions.

A cell culture is where cells are grown under controlled conditions.

A spinner is a form control that increases or decreases the amount in the cell linked to it. It is represented on your worksheet by an icon with both up and down arrowheads with a small line between the arrowheads. Holding down the mouse button on a spinner makes it change continuously. You add a spinner to your form by selecting the Spinner button on the Forms toolbar.

See related links for information about forms controls.

Cell culture is a nearly universally used technique to grow material for biological testing. In cell culture, an original population of seed cells divide under tightly controlled conditions to propagate the culture. All of the daughter cells from the original population are clones.