The diagram below represents stages of a cellular process for a cell with 4 chromosomes

Explanation:BCDA

in 1972 the fluid—mosaic membrane model of membrane structure was proposed based on thermodynamic principals of organization of membrane lipids and proteins and available evidence of asymmetry and lateral mobility within the membrane matrix [s. j. singer and g. l. nicolson, science 175 (1972) 720–731].

the genotypes would be 50% bb and 50% bb

the phenotypes would be 50% brown and 50% white. hope this : )