Because plants go through a cycle(the cycle is seed, seedling, plant, flower and tree.) and it takes time for the plant food, water, and nutrients to go though the plant.
Answer
Reverse transcription is the synthesis of DNA from an RNA template. Retrovirus is also a class of RNA viruses, that are characterized by the presence of an RNA - dependent DNA polymerase.
Reverse transcriptase are primer and template dependent just like other DNA polymerase.
Reverse transcription begins when the viral particle enters the cytoplasm of a target cell. The viral RNA genome then enters the cytoplasm as a part of the nucleoprotein complex.
The process of reverse transcription generates in the cytoplasm a linear DNA duplex through a intricate several processes.