Q.104 Botany ⭐ 360° Option Elimination Active

NEET 2025 Botany Question 104 Solution

Topic: Morphology of Flowering Plants · Official NTA Booklet Code 45

Question

Given below are two statements: Statement I: In a floral formula ⊕ stands for zygomorphic nature of the flower, and G̲ stands for inferior ovary. Statement II: In a floral formula ⊕ stands for actinomorphic nature of the flower and G̲ stands for superior ovary. In the light of the above statements, choose the correct answer from the options given below:

✓

Verified Against NTA Final Answer Key

Option (4) : Statement I is incorrect but Statement II is correct

📚 Morphology of Flowering Plants Easy

📋 Given Parameters & Problem Setup

Symbol ⊕ Actinomorphic (radial symmetry)

Symbol G Superior ovary (hypogynous flower, line below G)

Statement I ⊕ stands for zygomorphic nature, and G stands for inferior ovary. (False)

Statement II ⊕ stands for actinomorphic nature, and G stands for superior ovary. (True)

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The 30-Second Exam Hall Shortcut: ⚡ Floral Formula Decoding Shortcut

⏱️ Save ~20 seconds

⊕ has a circle with a cross = Radial / Actinomorphic symmetry! % = Bilateral / Zygomorphic! G has a line UNDER G = Ovary is ABOVE other whorls = SUPERIOR ovary! Statement I is FALSE; Statement II is TRUE ⟹ Option (4)!

1 Recall floral formula symbols from NCERT Chapter 5 Section 5.9:

2 - ⊕: Actinomorphic (radial symmetry).

3 - %: Zygomorphic (bilateral symmetry).

4 - G (bar below G): Superior ovary (flower is hypogynous).

5 - Ḡ (bar above G): Inferior ovary (flower is epigynous).

6 - G- (bar beside G): Half-inferior ovary (perigynous flower).

7 Statement I claims ⊕ is zygomorphic and G is inferior ⟹ completely FALSE.

8 Statement II claims ⊕ is actinomorphic and G is superior ⟹ completely TRUE.

9 Conclusion: Statement I is incorrect but Statement II is correct.

10 Select Option (4) in under 5 seconds!

🛡️

Why You Can 100% Trust This Shortcut: Floral Formulas & Diagnostic Family Characteristics (NCERT Biology · Morphology of Flowering Plants).

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Step-by-Step Rigorous Workflow & Mathematical Proof

Step 1

Floral Symmetry Symbols in Floral Formulas

Floral symmetry indicates the geometric planes along which a flower can be divided into identical halves:

\oplus = \text{Actinomorphic (Radial symmetry)}, \quad \% = \text{Zygomorphic (Bilateral symmetry)}

• Actinomorphic flowers (e.g., mustard, datura, chilli) can be divided into equal halves in any radial plane passing through the center.
• Therefore, ⊕ represents actinomorphy, not zygomorphy.

Step 2

Ovary Position Symbols in Floral Formulas

The horizontal line placed relative to the letter G (Gynoecium) designates the position of the ovary relative to the calyx, corolla, and androecium:

\underline{\text{G}} = \text{Superior ovary (Hypogynous)}, \quad \bar{\text{G}} = \text{Inferior ovary (Epigynous)}

• In a hypogynous flower, sepals, petals, and stamens insert below the ovary, so the line is drawn beneath the letter G (G).
• In an epigynous flower, floral parts arise above the ovary, so the line is drawn above G (Ḡ).

Step 3

Evaluate Statements I and II

Compare with the statements presented:

\text{Statement I: Inverts both symbols} \implies \text{False}, \quad \text{Statement II: Accurate} \implies \text{True}

• Statement I is incorrect and Statement II is correct, matching Option (4).

⭐

360° Option Elimination Engine Key Feature

Diagnose every choice: Know exactly why the right option works and why distractors fail.

4-Option Deep Scan

1 A

✗ Incorrect

Verdict & Scientific Reason:

Incorrect. Statement I reverses both definitions.

⚠️

Student Fallacy (Why candidates pick this trap): Failing to notice the errors in Statement I.

2 B

✗ Incorrect

Verdict & Scientific Reason:

Incorrect. Statement II is correct.

⚠️

Student Fallacy (Why candidates pick this trap): Doubting canonical floral symbols.

3 C

✗ Incorrect

Verdict & Scientific Reason:

Incorrect. Inverts truth values.

⚠️

Student Fallacy (Why candidates pick this trap): Swapping definitions of actinomorphic and zygomorphic.

4 D

✓ 100% Correct

Verdict & Scientific Reason:

100% correct. ⊕ is actinomorphic and G is superior ovary.

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Why this is airtight: None; flawless recall of botanical floral notation.

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NTA Trap Alert: Confusing Underline Position on G

A common slip is thinking the line shows where the ovary is located (line below = inferior). In botany, the line represents the OTHER floral whorls: line below G means other whorls are BELOW the ovary, so the ovary is SUPERIOR!

🛡️ How to avoid the -1 mark: Remember: Line BELOW G means ovary sits on top = SUPERIOR!

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Core NEET Syllabus Standard

NEET Biology Core Syllabus · Morphology of Flowering Plants Standard Benchmark

Core Scientific Principle Tested:

"⊕ designates actinomorphic symmetry; G designates a superior ovary."

Syllabus Focus: Semi-Technical Description of a Typical Flowering Plant: Floral Formula

✓ Core NEET UG Syllabus Anchor Syllabus & Academic Standards ↗

Circle cross ⊕ = Radial (Actino); Line under G = G is on top (Superior) ⟹ Statement II is TRUE (Option 4)!

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NEET 2025 Botany Question 104 Solution

Question

The 30-Second Exam Hall Shortcut: ⚡ Floral Formula Decoding Shortcut

Step-by-Step Rigorous Workflow & Mathematical Proof

Floral Symmetry Symbols in Floral Formulas

Ovary Position Symbols in Floral Formulas

Evaluate Statements I and II

360° Option Elimination Engine Key Feature

NTA Trap Alert: Confusing Underline Position on G

Core NEET Syllabus Standard

Ready to attempt under real exam pressure?

🔗 Related Questions — Morphology of Flowering Plants

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