On the other hand, Swiss bioengineer Martin Fussenegger correctly observed that the Venter achievement “is a technical advance, not a conceptual one.” Other scientists noted that the organism is really only “semi-synthetic,” because the synthetic DNA (which comprises only about 1% of the dry weight of the cell) was introduced into a normal, or non-synthetic, bacterium.
而另一方面，瑞士遗传学家马丁·弗森尼格明智地点明文特尔的成果“只是一个工具性的创新，不是概念性的革命”。还有一些科学家则指出文特尔合成的生命严格来说只能算是个“半合成品”，因为合成后的DNA（仅占了整个细胞干重的1%）被植入了一个正常的（或者说非合成的）细菌中。