O-Transcarbamoylase
Ocs element
Ocular gene therapy
Oligonucleotide modulation of cell adhesion
Oligoribonucleotides for cleaving RNA
Olpidium zoospores as vectors of recombinant DNA to plants
Opine enhancement of vir gene induction
Oral immunization by transgenic plants
Ornithine carbamoyl transferase gene and utilization of the DNA
Osmotin gene promoter and use thereof