| 摘要 |
Genetically engineered organism in which the phenotypic expression of at least one gene is variegated, characterized by at least one functional gene and at least one inserted DNA sequence transcribable in the organism and capable of interfering with the expression of said gene or genes such that said gene or genes is (are) intermittently expressed. Also included within the scope of the invention are processes for genetically engineering variegation and vector systems. |
