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Which process must a cell undergo top identical cells at the end of cell division

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

How many copies of each chromosomes should be present in each of the 4 final haploid versions of gamete?