Crack CSIR NET 2021 | Life Science : (System Physiology Plants) (27 September)

What are the tiny molecules of naked circular RNA that infect plants?

The role of salicylic acid in systemic acquired resistance of plants is to:

Identify the correct statements.
 
A. Bundle sheath containing chloroplast present in C4 plants
B. Annual rings differentiate into barks and woods
C. Sap wood is important for biological functions and heart wood is economical important as it contains gums, resins, oils, tannins, etc.
D. Clonal propagation leads to somaclonal variation

If a plant embryo failed to form enough ground tissue, what function(s) would likely be directly affected in the corresponding mature plant?

Which of the following plant hormone is responsible for coleoptile elongation?