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Question:

You are asked by your teacher to study the different parts of an embryo of a gram seed. Given below are the steps to be followed for the experiment: I. Soak the gram seeds in plain water and keep them overnight. II. Cut open the soaked seed and observe its different parts. III. Take some dry gram seeds in a petri dish. IV. Drain the excess water. V. Cover the soaked seeds with a wet cotton cloth and leave them for a day. The correct sequence of these steps is: III, I, II, IV, VIII, I, V, IV, II; III, IV, V, I, II; III, I, IV, V, II; III, I, V, IV, II; III, IV, V, I, II; III, I, IV, V, II; III, I, V, IV, II; III, IV, V, I, II

III, I, II, IV, V

III, I, IV, V, II

III, I, V, IV, II

III, IV, V, I, II

Solution:

Take some dry gram seeds in a petri dish. Soak the gram seeds in plain water and keep them overnight. Drain the excess water. Cover the soaked seeds with a wet cotton cloth and leave them for a day. Cut open the soaked seed and observe its different parts. Gram is dicot plant and its seed has seed coat and embryo (two cotyledons, epicotyl, hypocotyl and radicle). Therefore, the correct answer is option D.