Correct Option
The correct option is
Parallel venation : Grass
Explanation
Angiosperms (flowering plants) are classified into two major groups: Monocotyledons (monocots) and Dicotyledons (dicots). These groups exhibit distinct morphological differences in their leaf venation (arrangement of veins) and root systems.
Option Analysis
- (a) Reticulate venation : Maize – Incorrect. Maize is a monocot plant. Monocots typically exhibit parallel venation, where veins run parallel to each other within the leaf lamina. Reticulate (net-like) venation is a characteristic of dicots.
- (b) Parallel venation : Grass – Correct. Grasses belong to the monocot group. Their leaves show parallel venation, which is a defining feature of monocotyledonous plants.
- (c) Taproot : Wheat – Incorrect. Wheat is a monocot. Monocots possess a fibrous root system, where the primary root is short-lived and replaced by a large number of roots originating from the base of the stem. Taproot systems are characteristic of dicots.
- (d) Fibrous root : Gram – Incorrect. Gram (Chickpea) is a dicot plant. Dicots are characterized by a taproot system, consisting of a main primary root that grows deep into the soil with lateral branches.
Key Takeaway
Monocots (e.g., Grass, Wheat, Maize) generally have parallel venation and fibrous root systems. Dicots (e.g., Gram, Bean, Mango) generally have reticulate venation and taproot systems.