what are their similarities? n how to differentiate among them?
2007-06-20 03:58:35 · 1 answers · asked by jigglymint 1 in Science & Mathematics ➔ Biology
i need more similarities for that.. help me please T_T
2007-06-21 07:16:59 · update #1
All nucleotides consist of a deoxyribose sugar. To carbon #1 of the sugar, one of the four bases is bound. To (normally) carbon #5 of deoxyribose, a phosphate group is attached. Two of the bases (A and G) are purines. They are the larger bases and consist of two nitrogen-containing rings, a hexagonal ring and a pentagonal ring. The other two bases (T and C) are pyrimidines, and consist of only a single hexagonal ring. By looking at structures of the four bases, you'll see that the groups attached to the rings are different. By learning the identities and the positions of the substituents, you can distinguish among the 4 bases quite easily.
2007-06-20 04:04:46 · answer #1 · answered by hcbiochem 7 · 2⤊ 0⤋