The dog genome is basically the human genome divided into about 70 different pieces and rearranged on a greater number of chromosomes, according to a new map of the dog genome.While making the map, the researchers lined up each chromosome segment in the dog with its corresponding region of the human genome.he dog genome is basically the human genome divided into about 70 different pieces and rearranged on a greater number of chromosomes, according to a new map of the dog genome.
There are three main layers if skin but there are layers within two of these layers. One of these layers is the epidermis; the epidermis is the top external layer and has five layers within that layer.
Learning how the skin functions begins with an understanding of the structure of the three layers of skin: the epidermis, the dermis, and subcutaneous tissue. The Epidermis. The epidermis is the outermost layer of the three layers of skin. Its thickness depends on where it is located on the body. For example, it's thinnest on the eyelids (half a millimeter). On the palms of the hands and soles of the feet, it's thickest (1.5 millimeters).