Definition of GRAVAMEN: The burden or gist of a charge; the grievance or injury specially complained of.In English ecclesiastical law. A grievance complained of by the clergy befo The Law Dictionary Featuring Black's Law Dictionary Free Online Legal Dictionary 2nd Ed.
Phosphate and sugar make up the sides of a DNA ladder.
The two sides of the DNA ladder are held together loosely by hydrogen bonds (see the small dots down the middle of the double helix). The DNA can actually unzip when it needs to replicate-or make a copy of itself. DNA needs to copy itself when a cell divides, so that the new cells each contain a copy of the DNA.he sides of the ladder are made of alternating sugar and phosphate molecules. The sugar is deoxyribose. The rungs of the ladder are pairs of 4 types of nitrogen bases.Two of the bases are purines-adenine and guanine. The pyrimidines are thymine and cytosine.