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Question:

A student while observing an embryo of a pea seed in the laboratory listed various parts of the embryo as given below: Testa, Tegmen, Radicle, Plumule, Micropyle, Cotyledon. On examining the list the teacher remarked that only three parts are correct. Select three correct parts from the list.

Testa, Radicle, Cotyledon

Cotyledon, Plumule, Testa

Tegmen, Radicle, Micropyle

Radicle, Cotyledon, Plumule

Solution:

Pea is a dicot plant and its seed has testa, cotyledons and embryonic axis. Its embryo consists of the cotyledon, plumule and radicle making option D correct answer. The fleshy round structure/s on the embryonic axis that contains reserve food material is known as cotyledon. The radicle is present on the micropylar end of the embryonic axis while the plumule is present on the opposite extreme.