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.
DNA is the largest known molecule. A single unbroken strand can contain millions of atoms. When DNA is released from a cell it typically breaks up into short strand fragments. These smaller fragments have a slightly negative electric charge. Salt ions, common in many solutions, are attracted to the negative charges on the DNA fragments. By controlling the salt concentration of the solution, DNA can remain fragmented or become very âstickyâ and form large globs of molecular material.