instruction:
Translate the given Spanish text to English
question:
The digital signal is converted into an analogical signal.
answer:
Convirtiendo la señal digital en una señal analógica.


question:
Methods for the production of insulin in plants are described.
answer:
Se describen metodos para la produccion de insulina en plantas.


question:
Methods of preparing the copper compositions are also disclosed.
answer:

Tambien se describen metodos para preparar las composiciones de cobre.