#botany multiple choice question

Phototropin+All PYQS

Phototropin is classified as:

The right choice is B: Flavoprotein kinase. In Phototropin+All, that matches how the process or concept actually works — the other choices mix up related ideas or use the wrong mechanism. Skip these: A) Phytochrome; C) Steroid receptor; D) Ion channel. 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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VERNALIZATION & FLOWERING+PYQS

After vernalization, activation of which genes promotes flowering?

Answer: B) FT, SOC1 and FD. For VERNALIZATION & FLOWERING, remember the key idea and you’ll land on this option; the distractors usually swap cause and effect or confuse similar terms. Avoid: A) FLC only; C) VRN2 only; D) FRI 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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PHOTOPERIODISM+PYQS

In rice, homolog of FT gene is:

Pick B: Hd3a. Thinking through PHOTOPERIODISM step by step rules out the lookalikes and leaves Hd3a. Skip these: A) Hd1; C) CO; D) AP1. 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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ABC MODEL+PYQS

Floral meristem identity genes include:

Pick A: AP1 and LFY. Thinking through ABC MODEL step by step rules out the lookalikes and leaves AP1 and LFY. Skip these: B) AP3 and PI; C) AG and SEP; D) PI and AP2. 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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ABC MODEL+PYQS

Which gene among the following is NOT a MADS-box gene?

That points to D: AP2. Compared with the other options, AP2 is the one that correctly describes the ABC MODEL concept. The wrong ones are A) AP3; B) PI; C) 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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