Es el cambio de direccion que experimneta un rayo luminoso al chocar en una superficie Sabran la respuesta?

Ineed an essay 1200words about obezity ,introduction, main causes, conclusion

In many ways, the regulation of the genes of a particular group of viruses will be similar to the regulation of the host genes. therefore, which of the following would you expect of the genes of a bacteriophage? a) regulation via acetylation of histonesb) positive control mechanisms rather than negativec) control of more than one gene in an operond) reliance on transcription activators

This is a negative reaction to food that doesn’t involve the immune system