What was the type of donor cell if a recipient genotype does

What was the type of donor cell if a recipient genotype does not change except for becoming a donor? F\' H fr F^+ F^-

Solution

F⁺ is correct ans

F+, F\', and HFR can all donate their plasmids. F- can only receive plasmids! whereas F+ and F\' can convert F- into donor cells. HFR can only transfer donor genes something F\' is actually incapable of.If genotype does not change except for becoming a new donor than F+ was the perp.