First slide

Pre-fertilisation : Structures and Events

Question

The cell is bigger, has abundant food reserve and a large irregularly shaped nucleus. The _ is small and has a spindle-shaped nucleus with dense cytoplasm.

Easy

A

a-vegetative cell; b-generative cell
B

a-generative cell; b-vegetative cell
C

a-tapetal cell; b-endothelial cell
D

a-endothelial cell; b-tapetal cell

Solution

The vegetative cell is bigger, has abundant food reserve and a large irregularly shaped nucleus. The generative cell is small and floats in the cytoplasm of the vegetative cell. It is spindle shaped with dense cytoplasm and a nucleus.

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