Eagle Pass is the fastest route between San Antonio and Mexico and is often referred to as La Puerta de Mexico or Mexico's Door. It is also the home to the historic ruins of the 18th century San Bernardo Mission.
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.
1 Both cell types have many, many ribosomes, but the ribosomes of the eukaryotic cells are larger and more complex than those of the prokaryotic cell. 2  Ribosomes are made out of a special class of RNA molecules (ribosomal RNA, or rRNA) and a specific collection of different proteins. The purpose of the nucleus is to sequester the DNA-related functions of the big eukaryotic cell into a smaller chamber, for the purpose of increased efficiency. 2  This function is unnecessary for the prokaryotic cell, because its much smaller size means that all materials within the cell are relatively close together.