At the chemical level, the DNA of prokaryotic cells, which have no nuclear membranes, and that of eukaryotic cells, which have separate, membrane-enclosed nuclei, is identical. DNA is a long, double-stranded molecule containing a backbone of repeating, alternating sugar and phosphate units.
Simple cuboidal epithelium is a type of epithelial tissue found in the body. It is a single layer thick and made of cube-shaped cells. This type of tissue is found lining parts of the body such as the kidney tubules and walls of respiratory bronchioles.
Both the gastric epithelium and intestinal epithelium are simple columnar, non-ciliated epithelial tissue. Epithelium is a type of animal tissue that lines the inner surface of several organs in the body. In fact, the word Epithelium finds its origins from the Greek words âEpiâ (that means on/onto) and âtheliâ...