Which of the following statements is incorrect ?
$(i)$ Bamboo species flower only once in their life time, generally after $50-100$ years and produce large number of fruits and die.
$(ii)$ In animals, the juvenile phase is followed by morphological and physiological changes prior to active reproductive behaviour.
$(iii)$ The reproductive phase is of same duration in all organisms.
$(iv)$ Juvenile phase is the period of growth between the birth of an individual till it reaches reproductive maturity.

Formation of a sporophyte from gametophyte and vice versa is termed as

What is the chromosome number in meiocyte of potato ?

Which of the following plants is monoecious ?

Identify $X, Y$ and $Z$ and select the correct option