#plant developmental biology MCQ

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

Peloria mutant of Linaria is caused due to inactivation of:

That points to C: CYCLOIDEA. Compared with the other options, CYCLOIDEA is the one that correctly describes the ABCE & ABCDE MODEL +Synapdrgon flowering concept. The wrong ones are A) DIV; B) RAD; D) AG. 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

Mutation in CYCLOIDEA gene leads to:

Correct option is B, Radial symmetry. In ABCE & ABCDE MODEL +Synapdrgon flowering problems like this, the accurate statement is Radial symmetry; the others are common mix-ups. Not these: A) Bilateral symmetry; C) Extra petals; D) Loss of sepals. 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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ABCE & ABCDE MODEL +Synapdrgon flowering

RAD represses which gene to control ventral identity?

Pick C: DIV. Thinking through ABCE & ABCDE MODEL +Synapdrgon flowering step by step rules out the lookalikes and leaves DIV. Skip these: A) CYC; B) DICH; D) SEP. For hormones and genes, match the molecule or gene to its real role, not a neighboring pathway.

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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ABC MODEL+PYQS

APETALA2 (AP2) is unique because it is:

That points to C: Non-MADS box gene. Compared with the other options, Non-MADS box gene is the one that correctly describes the ABC MODEL concept. The wrong ones are A) Class B gene; B) Class C gene; D) Only expressed in one whorl. 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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