PHOTOPERIODISM+PYQS

PHOTOPERIODISM+PYQS

Which of the following is a long-short day plant?

The right choice is B: Bryophyllum. In PHOTOPERIODISM, that matches how the process or concept actually works — the other choices mix up related ideas or use the wrong mechanism. Skip these: A) Trifolium; C) Rice; D) Wheat. 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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PHOTOPERIODISM+PYQS

Short-long day plants flower after:

Correct option is B, Short days followed by long days. In PHOTOPERIODISM problems like this, the accurate statement is Short days followed by long days; the others are common mix-ups. Not these: A) Long days followed by short days; C) Only short days; D) Only long days. 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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PHOTOPERIODISM+PYQS

Long-short day plants flower after:

That points to C: Sequence of long days followed by short days. Compared with the other options, Sequence of long days followed by short days is the one that correctly describes the PHOTOPERIODISM concept. The wrong ones are A) Only long days; B) Only short days; D) Random photoperiod. 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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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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PHOTOPERIODISM+PYQS

FT gene product functions as:

Pick B: Florigen. Thinking through PHOTOPERIODISM step by step rules out the lookalikes and leaves Florigen. Skip these: A) Photoreceptor; C) Repressor of flowering; D) Growth inhibitor. 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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PHOTOPERIODISM+PYQS

CO protein is stable mainly under:

Answer: C) Light conditions. For PHOTOPERIODISM, remember the key idea and you’ll land on this option; the distractors usually swap cause and effect or confuse similar terms. Avoid: A) Dark conditions; B) Short days; D) Low temperature. 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

CONSTANS (CO) gene is involved in:

The right choice is B: Promotion of flowering in long days. In PHOTOPERIODISM, that matches how the process or concept actually works — the other choices mix up related ideas or use the wrong mechanism. Skip these: A) Inhibition of flowering; C) Seed germination; D) Dormancy. 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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PHOTOPERIODISM+PYQS

Arabidopsis thaliana is classified as a:

The right choice is C: Long day plant. In PHOTOPERIODISM, that matches how the process or concept actually works — the other choices mix up related ideas or use the wrong mechanism. Skip these: A) Short day plant; B) Day neutral plant; D) Intermediate plant. 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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PHOTOPERIODISM+PYQS

Florigen synthesized in leaves is transported to:

The right choice is C: Shoot apical meristem. In PHOTOPERIODISM, that matches how the process or concept actually works — the other choices mix up related ideas or use the wrong mechanism. Skip these: A) Roots; B) Stem cortex; D) Flowers. 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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PHOTOPERIODISM+PYQS

Florigen is:

Answer: B) A hypothetical flowering hormone produced in leaves. For PHOTOPERIODISM, remember the key idea and you’ll land on this option; the distractors usually swap cause and effect or confuse similar terms. Avoid: A) A plant hormone produced in roots; C) A phytochrome pigment; D) A transcription factor. 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

Exposure to far-red light reverses the effect of:

B fits best: Red light. Keep the PHOTOPERIODISM basics straight and Red light stands out as the precise answer. Avoid: A) Blue light; C) UV light; D) Green light. Light and flowering items often hinge on which photoreceptor or day-length rule is in play.

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

Night break treatment is most effective when given:

Answer: C) In middle of dark period. For PHOTOPERIODISM, remember the key idea and you’ll land on this option; the distractors usually swap cause and effect or confuse similar terms. Avoid: A) At beginning of night; B) At end of night; D) During day. 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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