Merge pull request #10327 from Seris02/tggenetics

ports tg genetics

code/modules/reagents/chemistry/reagents/medicine_reagents.dm

@@ -957,7 +957,7 @@ datum/reagent/medicine/styptic_powder/overdose_start(mob/living/M)
 /datum/reagent/medicine/mutadone/on_mob_life(mob/living/carbon/M)
 	M.jitteriness = 0
 	if(M.has_dna())
-		M.dna.remove_all_mutations()
+		M.dna.remove_all_mutations(mutadone = TRUE)
 	if(!QDELETED(M)) //We were a monkey, now a human
 		..()
 

code/modules/reagents/chemistry/reagents/toxin_reagents.dm

@@ -40,9 +40,9 @@
 	if((method==VAPOR && prob(min(33, reac_volume))) || method==INGEST || method==PATCH || method==INJECT)
 		M.randmuti()
 		if(prob(98))
-			M.randmutb()
+			M.easy_randmut(NEGATIVE+MINOR_NEGATIVE)
 		else
-			M.randmutg()
+			M.easy_randmut(POSITIVE)
 		M.updateappearance()
 		M.domutcheck()
 	..()