A pea plant with purple flowers (and unknown genotype) is crossed with a pea plant with white flowers. One-half of the offspring have purple flowers, and one-half have white flowers. What are the genotypes of the parent plants?

the cell theory states that all living things including animals, as well as plants, are made of cells.

other quantities, called derived quantities, are defined in terms of the seven base quantities via a system of quantity equations. the si derived unitsfor these derived quantities are obtained from these equations and the seven si base units.