The Question is from neet-botany , and it was created by the author Mr. NARESH KUMAR K

Question

A flower exhibits a pentamerous, actinomorphic perianth, a syncarpous gynoecium with a superior ovary, and ten stamens in two whorls. Which of the following floral formulas BEST represents this flower?

Mr. NARESH KUMAR K · Accepted Answer

## CORE INFORMATION
✓ **Answer**: A
## CONCEPT FRAMEWORK
	**Primary Concept**: Floral Formula
	**Related Topics**: Flower morphology, Plant taxonomy, Angiosperms
	**Prerequisites**: Understanding of floral parts and their representation in a floral formula.
## SOLUTION PATHWAY
**Given Information**:
	* Pentamerous: Parts in fives or multiples of five.
	* Actinomorphic: Radial symmetry (represented by ✶).
	* Perianth: Calyx (K) and Corolla (C) are similar and in fives.
	* Syncarpous gynoecium: Fused carpels (represented by parentheses around G).
	* Superior ovary: Ovary positioned above other floral parts (represented by G).
	* Ten stamens in two whorls: Five stamens in each whorl (represented by 5+5).
**Method & Steps**:
	1. Represent actinomorphic symmetry: ✶
		Reasoning: The flower has radial symmetry.
	2. Represent the perianth: K5C5
		Working: Pentamerous condition implies 5 sepals (K) and 5 petals (C).
	3. Represent the androecium: A5+5
		Key Point: Two whorls of five stamens each.
	4. Represent the gynoecium: G(5)
		Result: Syncarpous gynoecium with 5 fused carpels and a superior ovary.
		Verification: The resulting formula, ✶K5C5A5+5G(5), accurately reflects the given flower description.
 ## OPTION ANALYSIS
[A] ✓: ✶K5C5A5+5G(5): This option correctly represents all the given features: actinomorphic symmetry (✶), pentamerous calyx and corolla (K5C5), ten stamens in two whorls (A5+5), and a syncarpous, superior ovary with five carpels (G(5)).
[B] :x: ✶K(5)C(5)A10G5: While this option indicates the correct number of sepals, petals, and carpels, it doesn't specify the two whorls of stamens and incorrectly represents the gynoecium as apocarpous (G5) instead of syncarpous (G(5)).
[C] :x: ↑K5C5A10G(5): This option uses the wrong symbol for symmetry. ↑ represents zygomorphic symmetry, not actinomorphic symmetry.
[D] :x: ✶K5C5A(5+5)G5: This option incorrectly places parentheses around the stamen count and represents the gynoecium as apocarpous (G5) instead of syncarpous (G(5)).
 ## LEARNING AIDS
	**Common Mistakes**:
		1. Confusing symbols for symmetry: Ensure the correct symbol is used (✶ for actinomorphic, ↑ for zygomorphic).
		2. Misrepresenting fusion of carpels: Use parentheses around G to indicate syncarpous gynoecium.
	**Quick Tips**:
		1. Break down the floral formula into its components (symmetry, perianth, androecium, gynoecium) to avoid errors.
		2. Practice writing floral formulas for various flower types to build familiarity.

Mr. NARESH KUMAR K · Answer

The correct Option is "✶K5C5A5+5G(5)"

Mr. NARESH KUMAR K · Answer

✶K(5)C(5)A10G5

Mr. NARESH KUMAR K · Answer

↑K5C5A10G(5)

Mr. NARESH KUMAR K · Answer

✶K5C5A(5+5)G5

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