1. | Horticulture | 2. | Plant breeding |
3. | Floriculture | 4. | Micropropagation |
Consider the following statements regarding floral primordium:
I: | It is formed at the shoot apical meristem |
II: | The development of flowers is dependent on genetics, PGR, and environmental conditions. |
Of the two statements:
1. | Only I is correct |
2. | Only II is correct |
3. | Both I and II are correct |
4. | Both I and II are incorrect. |
In a typically complete, bisexual, and hypogynous flower, the arrangement of floral whorls on the thalamus from the outermost to the innermost is:
1. | Calyx, corolla, androecium, and gynoecium |
2. | Calyx, corolla, gynoecium, and androecium |
3. | Gynoecium, androecium, corolla, and calyx |
4. | Androecium, gynoecium, corolla, and calyx |
Among the terms listed below, those that are not technically correct names for a floral whorl are:
i. | Androecium | ii. | Carpel |
iii. | Corolla | iv. | Sepal |
1. | i and iv | 2. | iii and iv |
3. | ii and iv | 4. | i and ii |
I: | are typically located at the tip of the filament of the stamen. |
II: | are usually bilobed, each containing pollen sacs called microsporangia. |
III: | dehisce, or split open, to release mature pollen. |
A typical angiosperm anther is:
1. Bilobed and polythecous
2. Unilobed and monothecous
3. Multilobed and monothecous
4. Bilobed and dithecous
1. | it is bilobed |
2. | each lobe has two theca |
3. | a transverse groove runs diametrically separating the theca |
4. | it is a four-sided (tetragonal) structure consisting of four microsporangia located at the corners, two in each lobe. |
Statement I: | A typical angiosperm anther is bilobed with each lobe having two theca, i.e., they are dithecous. |
Statement II: | The anther is a four-sided (tetragonal) structure consisting of four microsporangia located at the corners, two in each lobe. |
In an angiosperm, the structure that develops and becomes a pollen sac is called:
1. | Megasporophyll | 2. | Megasporangium |
3. | Microsporangium | 4. | Microsporophyll |