Water is required for both the light-dependent and the light-independent reactions to proceed.
Answer:
Partially / semi <u>permeable</u>
Explanation:
Only certain substances can move in cells thus membranes are permeable partially.
25% since there's a 25% chance they'd be homozygous dominant(not have CF) and a 50% chance they'd be heterozygous dominant(not have CF) then the last 25% is the potential they'd be homozygous recessive(have CF)