Epidermis, in botany, outermost, protoderm-derived layer of cells covering the stem, root, leaf, flower, fruit, and seed parts of a plant. The epidermis and its waxy cuticle provide a protective barrier against mechanical injury, water loss, and infection.
Binucleated cells are found in onion root tips are examined under a microscope. What does binucleated mean? which part of the cell cycle is interrupted to cause this result?