Vascular bundles in monocotyledons are considered closed because:
1. | a bundle sheath surrounds each bundle |
2. | cambium is absent |
3. | there are no vessels with perforations |
4. | xylem is surrounded all around by phloem |
is the floral formula of:
A major characteristic of the monocot root is the presence of:
1. | Scattered vascular bundles |
2. | Vasculature without cambium |
3. | Cambium sandwiched between phloem and xylem along the radius |
4. | Open vascular bundles |
Keel is the characteristic feature of a flower of:
Perigynous flowers are found in:
Leaves become modified into spines in the:
The structures that are formed by stacking of organised flattened membranous sacks in the chloroplasts are:
The chromosomes in which the centromere is situated close to one end are:
Select the correct matching among the following pairs.
The true nucleus is absent in: