WEBUnlike human mitochondrial genes, some plant and fungal (including yeast) mitochondrial genes contain introns, which must be removed by RNA splicing. Introns have also been found in plant chloroplast genes.

WEBAlthough chloroplasts encode more of their own proteins than mitochondria, about 90% of chloroplast proteins are still encoded by nuclear genes. As with mitochondria, these proteins are synthesized on cytosolic …