1. Tardigrade
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  4. Identify the characters with reference to the plant in which eight nucleated embryo sac was first studied by Strasburger.

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Q. Identify the characters with reference to the plant in which eight nucleated embryo sac was first studied by Strasburger.

EAMCETEAMCET 2008

Solution:

Strasburger (1879) first time described Polygonum type of embryo sac in Polygonum divaricum. Orthotropous ovule is found in Polygonum. It is the simplest and primitive type in which micropyle , chalaza and funiculus lie in one vertical plane.