The range of biomagnification of $\mathrm{DDT}$ in an aquatic food chain, if starting from $0.003 \mathrm{pp}m$ level in water may go at fish-eating bird level upto

Given below is a pedigree chart of a family with five children. It shows the inheritance of attached earlobes as opposed to the free ones. The squares represent the male individuals and circles represent the female individuals.

Which one of the following conclusions drawn is correct?

In sweet pea, genes $\mathrm{C}$ and $\mathrm{P}$ are necessary for colour in flowers. The flowers are white in the absence of either or both the genes. What will be the percentage of coloured flowers in the offspring of the cross $\mathrm{Ccpp}\times \mathrm{ccPp}?$