Directions : In the following question more than one of the answers given may be correct. Select the correct answer and mark it according to the code:
Primary root is (1) positively geotropic (2) positive hydrotropic (3) negative geotropic (4) negative hydrotropicA) 1,2 and 3 are correct.
B) 1 and 2 are correct.
C) 2 and 4 are correct.
D) 1 and 3 are correct.
Correct Answer: B
Solution :
Primary roots develop directly through elongation of the radicle of embryo and persist throughout the life of the plant. These are generally non-green underground positively geotropic, positively hydrotropic and often negatively phototropic organ of the plant body.
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