MICROANATOMY

Detailed explanation-1: -The stratum basale, which is a row of columnar cells resting on the basal lamina that separates the epidermis from the dermis. Mitosis occurs exclusively at the basal cell layer and allows for the replacement of cells lost from the surface.

Detailed explanation-2: -The stratum basale or germinativum is the innermost layer and is composed of immature cuboidal cells capable of mitotic division.

Detailed explanation-3: -No, mitosis does not occur in the stratum granulosum. The layer of the epidermis where mitosis occurs is in the basal cell layer, also known as the stratum basale. This is where stem cells that eventually become skin cells in the upper layers of the epidermis replicate.