They are Fruits even though they dont have seeds

A seedless plant would be eg a vegetable eg carrot-lettuce

but these plants have roots,

all fruits and flowers have seeds but vegetables do not.

There are no seedless vegetables. all vegetables eventually carry seed.

No. Many vegetables have seeds, such as tomato, cucumber, okra, eggplant, squash and others as well. Also, there are seedless fruits, such as seedless grapes, watermelon and cherries.

no, only genetically modified fruits and veggies are seedless