Plant viroids

Similar as plant viruses, viroids can be transmitted by insect, contain RNA or DNA as genetic materials, and cause various symptoms on infected plants.

• True

• False

Sanitation is also one of the practices to control viroid diseases.

• True

• False

Biological indexing involves comparing the molecular component of a viroid infecting various indicator hosts.

• True

• False

Coconut cadang-cadang viroid (CCCVd) had been reported infecting oil palms in Malaysia.

• True

• False

Chemical control on the insect population can eradicate the infection by plant viroids.

• True

• False

Reservoir hosts are the plants that are showing mild symptoms upon viroid infection.

• True

• False

Excluding the natural hosts from the potential host plants in the same planting site is the most effective control means.

• True

• False

Latent infections of viroid are common among ornamental plants.

• True

• False

Both plant viruses and viroids can manipulate organelles of the plant cell.

• True

• False

Plant hosts that are infected via pollen transmission of viroids potentially produce infected seed.

• True

• False