As a result of that mutaton, RNA transcripts would be less stable because 5’ cap has a function to prevent degradation by exonucleases. Also RNA transcripts would stay in nucleus because 5’ cap regulates nuclear export. Translation would be adversely affected because 5’ cap promotes translation .
Triploid organisms are normally sterile as their lack of homologous chromosomes prevents pairing during meiosis. This can be useful to plant breeders, for example in banana cultivation: sterile triploid bananas can be propagated asexually and will not contain any seeds.
