15 Questions
Triple gene block (TGB) includes TGR1, TGR2, TGR3.
True
Potyvirus is a type II virus for movement.
False
Virus can enter the apical meristem of plants.
False
Virus-infected plants generally show an increase in transpiration rate.
False
Virus infection leads to a reduction in transcription and translation of host cells.
False
Virus can be unloaded/transported only through minor veins.
False
Reduction in chloroplast numbers is a characteristic of virus-infected plants.
True
Respiration rate is more pronounced in hypersensitive hosts compared to nonhypersensitive hosts.
True
Viruses move directly from the site of infection to the root of the plant
False
The movement of viruses within a cell is dependent on the endoplasmic reticulum and cytoskeleton of the host
True
Plasmodesmata are cytoplasmic connections between adjacent plant cells
True
Movement proteins encoded by viral genomes are not associated with plasmodesmata
False
There are three main basic features of movement proteins, including binding to either ssRNA or ssDNA
True
There are four types of movement proteins, with Type II seen in hordeiviruses and potexviruses
True
Systemic spread of the virus occurs from the distal part of young unfurling leaves to the root of the plant
False
Test your knowledge about how viruses move within infected plants and the physiological effects on the plant. Learn about the systemic spread of viruses from the site of infection to different plant parts.
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