initiator ribonucleic acid

initiator ribonucleic acid

[i‚nish·ē¦ād·ər ‚rī·bō·nü¦klē·ik ′as·əd]
(cell and molecular biology)
An oligoribonucleotide that primes the initiation of Okazaki fragments during deoxyribonucleic acid synthesis.