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  4. The type of ovule in which micropyle, chalaza and hilum lie in straight line is

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Q. The type of ovule in which micropyle, chalaza and hilum lie in straight line is

NTA AbhyasNTA Abhyas 2020

Solution:

Orthotropous or atropous ovule is the most primitive and simplest type of ovule in angiosperms. It is erect (i.e, micropyle at upper end) and here micropyle, chalaza and funiculus lie in a same straight line, e.g., families Polygonaceae and Piperaceae.