#ABC model of flower development

PSS-Sec-E-Sensory biology

AGAMOUS (AG) is classified as:

The right choice is C: Class C gene. In PSS-Sec-E-Sensory biology, that matches how the process or concept actually works — the other choices mix up related ideas or use the wrong mechanism. Skip these: A) Class A gene; B) Class B gene; D) Class E gene. A quick check: if an option needs energy, pumps, or the opposite direction of movement, ask whether that really applies.

Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.

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PSS-Sec-E-Sensory biology

Loss of B class gene function leads to:

The right choice is B: Se-Se-Ca-Ca. In PSS-Sec-E-Sensory biology, that matches how the process or concept actually works — the other choices mix up related ideas or use the wrong mechanism. Skip these: A) Se-Pe-St-Ca; C) Pe-Pe-St-St; D) St-St-Ca-Ca. A quick check: if an option needs energy, pumps, or the opposite direction of movement, ask whether that really applies.

Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.

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ABCE & ABCDE MODEL +Synapdrgon flowering

Loss of Class A function results in absence of:

Answer: A) Sepals and petals. For ABCE & ABCDE MODEL +Synapdrgon flowering, remember the key idea and you’ll land on this option; the distractors usually swap cause and effect or confuse similar terms. Avoid: B) Petals and stamens; C) Stamens and carpels; D) Carpels only. Name the process first, then pick the option that describes it — don’t reverse cause and effect.

Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.

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ABCE & ABCDE MODEL +Synapdrgon flowering

Class A and Class C genes shows which interaction?

That points to C: Mutual antagonism. Compared with the other options, Mutual antagonism is the one that correctly describes the ABCE & ABCDE MODEL +Synapdrgon flowering concept. The wrong ones are A) Synergistic; B) Additive; D) Independent. If you’re stuck, eliminate anything that contradicts a basic fact you already know for this topic.

Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.

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ABCE & ABCDE MODEL +Synapdrgon flowering

ABCDE model differs from ABC model by inclusion of:

The right choice is C: Class D and E. In ABCE & ABCDE MODEL +Synapdrgon flowering, that matches how the process or concept actually works — the other choices mix up related ideas or use the wrong mechanism. Skip these: A) Class E only; B) Class D only; D) Class B and C. A quick check: if an option needs energy, pumps, or the opposite direction of movement, ask whether that really applies.

Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.

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ABC MODEL+PYQS

Class C gene in Arabidopsis is:

Correct option is D, AGAMOUS. In ABC MODEL problems like this, the accurate statement is AGAMOUS; the others are common mix-ups. Not these: A) AP1; B) AP2; C) AP3. Tissue transport questions usually turn on xylem vs phloem, living vs dead cells, or source vs sink.

Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.

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ABC MODEL+PYQS

Which floral whorl is specified by class A genes alone?

That points to B: Sepal. Compared with the other options, Sepal is the one that correctly describes the ABC MODEL concept. The wrong ones are A) Petal; C) Stamen; D) Carpel. If you’re stuck, eliminate anything that contradicts a basic fact you already know for this topic.

Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.

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