What contains the instructions that tell a Cell what functions to perform?

Will someone me with this.. specialized cells which perform a particular function form: tissues organs or organism

Plz fast biotechnology is a growing field of applied biology. many crops such as corn have been engineered to be resistant to herbicides. therefore farmers can spray these chemicals to kill weeds growing near the crop without worries of killing the crop itself how does this type of biotechnology work? a. by changing the genetic make up of the crops. b. by causing the crops to kill the weeds. c. by changing the type of crops used. d. by changing the location of the crops.

The image below shows a weather service map. which details best describe this map? check all that apply