A legacy resource from NICHCY. Welcome to the alphabet soup of special education! The disability community is full of acronyms that people constantly use in writing and in conversation, and itâs important to know what those acronyms stand for. Acronyms are used in order to abbreviate names or phrases.
DNA is negatively charged due to the negatively charged phosphate ions in its structure. DNA carries 2 negative charges per base pair (whose length is 0.34 nm). As a title oâ¦f example, the human DNA has about 6 thousands of million (6 x 10^9) base pairs. This gives a total charge of 12 thousands of million negative charges (12 x 10^9 negative charges), and a total length of about 2 meters.
The negative charge on the phosphate group is stabilized as the charge is distributed all over the molecule. As DNA is negatively charged, it gets attracted towards positive electrode or anode in electrophoresis. The oxygen atoms in the phosphate group are negatively charged. In solution, DNA forms a phosphoric ester where a H atom of phosphoric acid is replaced by a nitrogen base and sugar molecule.