Although biotechnologists can design precise genetic sequences in the test tube. We have seen that the actual location of a new sequence in the genome of the host organism is always a random mutative event and which causes random changes in the host organism's functions. Therefore genetic engineering not only disrupts the actual sequence of active genes which is known to be very important, but it also affects the silent sequences of DNA, and the crucial self-interacting properties of the whole DNA molecule which may be connected to the field functions of consciousness as well as to perceptual processes. For example recent reports suggest that sensory mechanisms of bees can be disabled by gene-altered crops. Sting in the tail for bees.
Nature is an interacting holistic system.
All organisms share a common DNA base. However, transferring genetic information specific to one class of organisms into the DNA of another unrelated species through genetic engineering opens up new pathways for unfavourable genetic mutation. Transfer of genetic information between unrelated species is known as horizontal gene transfer. Such horizontal gene transfer events certainly happen in nature, but they happen rarely and natural control mechanisms tend to rule out unusual events. Genetic engineering is truly mutagenic, it lacks the natural control mechanisms which tend to ensure that only genes with similar structures can exchange places.