How are adenine and guanine alike and different

Mario performed an experiment to determine if photosynthesis was affected by the amount of light that a plant received. what could he have done to increase the validity of his data? reduce the number of plants. remove the 1 hour group. add a 0 hours control. measure the oxygen in liters

Plz ! what does it mean for an allele to be dominant?

Carbon compound that stores and transmits genetic information is called