Will partial budgets ever contain some fixed ownership costs

Yes, partial budgets MAY SOMETIMES contain some fixed ownership costs depending on whether the proposed change includes any change in capital assets owned (i.e. the purchase or sale of capital assets). If any change in capital assets is included in the proposed change, then fixed ownership cost will change, and this should reflect on the partial budget.

the offspring would all be white. if the parents are both white flowers then they have the genotype rr, which when crossed results in an all white punnet square.