Hello Alibreolmma,
first thing first it's very hard to set a fixed price for anything since the economy is like a stormy sea right now with prices going up and down. That said, the best way to check for a price is looking at the AH or asking to players in public chat.
Those DNAs you've listed ain't very popular. They are hard to get since they drop from Bosses but their effect isn't that desirable. Only Dostoev can be considered as "useful" since it increases the quantity of job experience.
In general, the DNAs that are easier to sell are those that drop from the following monsters:
DoT:
- Mermaid - Shock, Slow;
- Imp - Ignition;
- RSX-0807 - Shock, Slow;
- Sohee - Addicted;
- Hellbug Warrior - Bleeding;
Heal:
- Assassin Elder, HoT;
- Willow Worker, Medium Heal;
- Lapparman, Large Heal;
- Lamort, Extra-Large Heal;
Buff:
- Mechanical Vadon - 10% STR/INT;
- Humbaba - 10% INT 5% MATK;
- Aromine - 5% Droprate;
- Sehee - 10% Experience;
- Merem - 10% Experience;
Crowd Control:
- Embus of Ruin - Freeze AoE;
- Eremes - Stun AoE;
- Giant Driller - Stun AoE;
Some are easier to find than others but in general people prefer buying DNA in large stacks! Best way to become a DNA seller is choosing the monster you want to farm and then go for it! Bosses will give you a harder time but the profit will be much greater if you succeed.
See you in game!