The glial cells outnumber theneurones and the two cell types occupy a comparable amount of space in nervous tissue. The main glial cell types are, inthe central nervous system, astrocytes and oligodendrocytes and, in the peripheral nervous system, Schwann cells, entericglial cells and satellite cells.he glial cells outnumber theneurones and the two cell types occupy a comparable amount of space in nervous tissue. The main glial cell types are, inthe central nervous system, astrocytes and oligodendrocytes and, in the peripheral nervous system, Schwann cells, entericglial cells and satellite cells.
1 Cytosine is found in both DNA and RNA, but thymine is only found in DNA and uracil is only found in RNA.  A nucleotide is formed when a phosphate attahes to the 5' carbon of the sugar and one of the nitrogenous baseses attaches to the 1' carbon of the sugar.
A single DNA nucleotide is made up of a base, a phosphate and a deoxyrib â¦ ose sugar. In RNA, the sugar is a RIBOSE sugar, not a deoxyribose. 3. A DNA nucleotide can have 4 different bases (Guanine, Cytosine, Thymine or Adenine) but an RNA nucleotide will have Guanine, Cytosine, Adenine and URACIL instead of Thymine.4. DNA is only found within the nucleus of the cell. RNA can be found in the cytoplasm of the cell as well as in the nucleus.he sequence of the bases on DNA is copied as a sequence of bases on RNA (messenger RNA). This is finally translated into a sequence of amino acids in the protein which determ â¦ ines the protein's structure and function.