Question

Identify the incorrect statement.

• A. Corolla, calyx, androecium and gynoecium are all fertile parts of the flower
• B. A lot of hormonal and structural transformations occur prior to initiation of flowering
• C. Reproductive meristem develops into inflorescence over which floral primordia grows
• D. Primordia develops first into floral buds and then flowers

Answer 1

The correct option is A Corolla, calyx, androecium and gynoecium are all fertile parts of the flower

Calyx and corolla are sterile parts of the flower i.e, they do not take part in reproduction in plants. While androecium and gynoecium are the fertile parts of the flower and actively participate in plant reproduction. Shoot apices modify themselves into flowering apices prior to flowering.

It has been hypothesised that there is a hormonal substance that is responsible for flowering. This hormonal substance migrates from leaves to shoot apices for inducing flowering only when the plants are exposed to the necessary inductive photoperiod.

Several hormonal and structural changes are initiated after which differentiation and further development of the floral primordium happens. Floral primordia grow into floral buds that are borne on the inflorescence axis and flowering occurs.