JAMB - Biology (2000 - No. 3)
Which of the following features are all associated with monocots?
Fibrous root system, branched network of veins and one seed leaf
Fibrous root system, two seed leaves and floral parts in threes
One seed leaf, petals in threes or group of thees and parallel venation of leaves
One seed leaf, net-veined leaves and petals in threes or multiple of three
설명
| Feature | In monocots | In dicots |
| Number of parts of each flower | in threes(flowers are trimerous) | in fours or fives (tetramerous or pentamerous) |
| Number of furrows or pores in pollen | one | three |
| Number of cotyledons (leaves in the seed) | one | two |
| Arrangement of vascular bundles in the stem | scattered | in concentric circles |
| Roots | are adventitious | develop from the radicle |
| Arrangement of major leaf veins | parallel | reticulate |