First slide

Pre-fertilisation : Structures and Events

Question

The outermost and innermost wall layers of microsporangium in an anther are respectively.

Easy

A

Endothecium and tapetum
B

Epidermis and endodermis
C

Epidermis and middle layer
D

Epidermis and tapetum

Solution

A typical microsporangium is generally surrounded by four-wall layers, i.e. the epidermis (outermost protective layer), then endothecium, then middle fibrous layers and the tapetum (innermost nutritive layer).

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