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 sugar and phosphate group make up the backbone of the DNA double helix, while the bases are located in the middle. A chemical bond between the phosphate group of one nucleotide and the sugar of a neighboring nucleotide holds the backbone together. Chemical bonds (hydrogen bonds) between the bases that are across from one another hold the two strands of the double helix together. Bases. There are four types of bases in DNA.