Pronucle or Pronuclei: How To spell?

The word Pronucle is misspelled against Pronuclei, which is plural of "Pronucleus"

Word end with consecutive vowels 'EI' preceded by alphabets 'pronucl' is misspelled as 'E' as letter 'I' is phonetically ignored
Wrong Spelling:  pronucl-e 
Correct Spelling:  pronucl-ei 
Check more misspelled words of Pronuclei to spell it correct.