Suffering, buffer etc.
The word "sufferer" has both "ff" and "rr" in it.
Apparently... It doesn't spell check when you type it. Ff, ff, ff. :D
throw-off
Yes it is. If you encounter the abbreviation "ff." in a text, it usually means "following", yes.
waitstaff
ff
To determine the genotype ratio from the given genotypes (fF, fF, ff, ff), we first count each genotype. There are 2 fF and 2 ff. The genotype ratio can be expressed as 2 fF : 2 ff, which simplifies to 1 fF : 1 ff. Thus, the genotype ratio is 1:1.
FF-FF-FF-FF-FF-FF
The answer is 'sunshine'.
effaced, efforts, effects
sheriff
all dominant