12a) Analysis of genocide etc. reveals DNA sequence (7,4)
14a) Flower a US mother planted in S. American country (9)
14d) I greet cat, wild one of 20 in pack (9)
18d) Smooth dessert yet with rough blend replacing energy (7)
Thankyou for any help.
12a.Genetic code ( anagram of genocide etc)
14a.Ch a mom ile
14d. Cigarette ( anagram of i greet cat)
18d. Yoghurt ( Anagram of rough replacing e in yet)