Question
How many spermatozoa are formed from one secondary spermatocyte?
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| Column I | Column II | ||
| (a) | Egg | 1 | Testa |
| (b) | Nucellus | 2 | Tegmen |
| (c) | Outer integument | 3 | Perisperm |
| (d) | Inner Integument | 4 | Embryo |
Classify the given specific effects of different types of auxins in Column A and complete Column B with the examples.
(IAA, NAA, 2, 4-D, IBA, 2, 4, 5-T)
| Column A | Column B |
| (1) Selective synthetic herbicide | ————- |
| (2) Seedless fruits | ———— |
| (3) Flowering in pineapple | ————- |
| (4) Synthetic auxin | ————- |
| (5) Agent orange | ———— |