Question

Read the given statements and select the correct option.
(i) Darwin and Darwin (1880) found that sensation of unilateral illumination was perceived by the coleoptile tip of canary grass.
(ii) IAA is universal natural auxin, discovered by Kogl et al.
(iii) IBA is both natural and synthetic auxin.
(iv) Auxins promote the growth of lateral shoots.

• A. Statements (i) and (ii) are correct.
• B. Statements (ii) and (iii) are correct.
• C. Statements (i), (ii) and (iii) are correct.
• D. Statements (i), (ii), (iii) and (iv) are correct.

Answer 1

The correct option is C Statements (i), (ii) and (iii) are correct.

Auxins promote the growth of apical buds and suppress the growth of lateral buds/lateral shoots.

So the correct option is 'Statements (i), (ii) and (iii) are correct.'