In angiosperms functional megaspore develops into

In angiosperms, functional megaspore developes into or The microscopic structure in flower that contains polar nuclei is

In angiosperms functional megaspore generally develops at

In Angiosperms, the functional megaspore of a linear tetrad is the

In Angiosperms, the functional megaspore of a linear tetrad is the

In angiosperms the functional megaspore in the linear tetrad is generally

In angiosperms the functional megaspore in the linear tetrad is generally

In angiosperms, the functional megaspore in the linear tetrad is generally

The functional megaspore undergoes