Length of petiole increases due to division of
Apical meristem
Lateral meristem
Intercalary meristem
All of these
Tunica corpus theory was proposed by
$A$. According to Clowes root apex consists of an inverted cup like structure.
$B$. Low amount of $RNA$, $DNA$ and protein is characteristic of waiting meristem.
$C$. Cells of reserve meristem can divide only when the root apex gets injured.
Lacunate collenchyma is found in
The undifferentiated cells are present in