The answer : A explanation: Structure of Plasma Membranes The primary function of the plasma membrane is to protect the cell from its surroundings. Composed of a phospholipid bilayer with embedded proteins, the plasma membrane is selectively permeable to ions and organic molecules and regulates the movement of substances in and out of cells.
Recessive. I don't know the topic of your question so I dont fully know. but if you are talking about dominant and receive then white would be a receive gene.