Given below are two statements:
Statement I: Calyx is drawn on the outside & gynoecium is drawn in centre.
Statement II: Floral formula also shows cohesion & adhesion within parts of whorl and between whorls.
In the light of the above statements, choose the most appropriate answer from the options given below:
Both Statement I and Statement II are correct.
— Concept: This question tests your understanding of how floral diagrams and floral formulae represent the structure and…Concept: This question tests your understanding of how floral diagrams and floral formulae represent the structure and relationships of different floral parts in flowering plants.
Why (C) is correct:
- Statement I: In a floral diagram, the outermost whorl is always the calyx (sepals), and the innermost whorl is the gynoecium (pistil/carpels). This arrangement reflects their position on the thalamus.
- Statement II: A floral formula uses symbols to represent the different floral parts (K for calyx, C for corolla, A for androecium, G for gynoecium), their number, and their arrangement. It also uses specific symbols (e.g., brackets around a number to indicate cohesion, a line above or below G to indicate ovary position, and a line connecting two different whorl symbols to indicate adhesion) to show the fusion (cohesion) within a whorl or fusion (adhesion) between different whorls.
Why other options are wrong:
- (A) Statement II is correct, not incorrect.
- (B) Statement I is correct, not incorrect.
- (D) Both statements are correct.
NEET Tip: Practice drawing floral diagrams and writing floral formulae for common families like Fabaceae, Solanaceae, and Liliaceae to solidify your understanding of these representations.
Correct Answer: (C)
Both Statement I and Statement II are correct.