Leading up to successful fertilisation, the growth of the pollen tube is controlled by
A) the nucleus of the vegetative cell.
B) signal molecules from the style.
C) the carbohydrate reserved of the vegetative cell.
D) the nucleus of the generative cell.
E) conditions on the stigma.

Question

Quizplus · Accepted Answer

The growth of the pollen tube is primarily controlled by the nucleus of the vegetative cell, which directs the tube's growth towards the ovule for fertilization.

Leading Up to Successful Fertilisation, the Growth of the Pollen