Answer:
the answer is B topographical
(Pp is the purple flower with the unknown genotype, pp is the white flower)
First scenario:
Pp x pp
first generation: Pp Pp pp pp (two purple, two white flowers)
Second scenario:
PP x pp
second generation : Pp Pp Pp Pp (four purple flowers)
A is correct because for cDNA first we need to have out mRNA sequence and we know that in prokaryotes they dont have mRNA and splicing mechine