It acts as an accessory pigment! Hope this helps! Also sorry that it took 11 hrs. for people to answer! =)
Yes.
The letters of the alphabet are really just abbreviations for the nitrogenous bases: adenine (A), thymine (T), guanine (G), and cytosine (C)
The person would first have trouble walking, and soon have trouble taking care of him or herself's basic needs.
