Placenta (Definition) The placenta is an organ that connects the developing fetus to the uterine wall to allow nutrient uptake, waste elimination, and gas exchange via the mother's blood supply.
Lesson Summary. The nucleoid region is the irregularly-shaped section of a prokaryotic cell where DNA is housed. It lacks the membrane that is found around the nucleus of eukaryotic cells. In addition to DNA, the nucleoid may also contain RNA, proteins, and enzymes that can be used for cellular processes.s the cells grow, the DNA in the nucleoid may extend into the cytosol, or cellular fluid. The nucleoid region may also contain proteins, enzymes, which are biological catalysts, and RNA. These proteins are necessary for several processes that take place in this region.
The following are the properties of a bacterial chromosome. Location: Within nucleoid region , not surrounded by nuclear envelope. Number: 1 chromosome each cell.