#vernalization MCQ

VERNALIZATION & FLOWERING+PYQS

The main adaptive significance of vernalization is to:

Go with B — Prevent flowering before winter. Under VERNALIZATION & FLOWERING, this is the standard explanation you’d use in class: it names the real driver or definition, while the rest are nearby but wrong. Not these: A) Increase photosynthesis; C) Promote vegetative growth; D) Enhance seed dormancy. When two options sound similar, choose the one that matches the textbook definition most tightly.

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

FRIGIDA (FRI) gene promotes flowering repression by:

That points to B: Activating FLC. Compared with the other options, Activating FLC is the one that correctly describes the VERNALIZATION & FLOWERING concept. The wrong ones are A) Repressing FLC; C) Activating FT; D) Repressing SOC1. 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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VERNALIZATION & FLOWERING+PYQS

Before vernalization, FLC expression is:

C fits best: High. Keep the VERNALIZATION & FLOWERING basics straight and High stands out as the precise answer. Avoid: A) Low; B) Absent; D) Oscillatory. 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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VERNALIZATION & FLOWERING+PYQS

FLC gene encodes a:

That points to C: MADS-box protein. Compared with the other options, MADS-box protein is the one that correctly describes the VERNALIZATION & FLOWERING concept. The wrong ones are A) bZIP protein; B) MYB protein; D) Homeobox protein. 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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VERNALIZATION & FLOWERING+PYQS

Which hormone can substitute for cold treatment in some plants?

Pick C: Gibberellic acid. Thinking through VERNALIZATION & FLOWERING step by step rules out the lookalikes and leaves Gibberellic acid. Skip these: A) Auxin; B) Cytokinin; D) Abscisic acid. 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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VERNALIZATION & FLOWERING+PYQS

Attempts to chemically isolate vernalin have so far been:

Pick C: Unsuccessful. Thinking through VERNALIZATION & FLOWERING step by step rules out the lookalikes and leaves Unsuccessful. Skip these: A) Highly successful; B) Partially successful; D) Conclusive. 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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VERNALIZATION & FLOWERING+PYQS

Vernalin is proposed to be:

Answer: B) A hypothetical flowering stimulus. 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) A plant hormone already isolated; C) A transcription factor; D) A phytochrome. 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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VERNALIZATION & FLOWERING+PYQS

Which developmental phase is shortened by vernalization?

Answer: B) Adult vegetative phase. 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) Juvenile phase; C) Reproductive phase; D) Embryonic phase. 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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VERNALIZATION & FLOWERING+PYQS

Loss of vernalization effect due to high temperature exposure is called:

B fits best: Devernalization. Keep the VERNALIZATION & FLOWERING basics straight and Devernalization stands out as the precise answer. Avoid: A) Stratification; C) Photoperiodism; D) Thermoperiodism. 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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VERNALIZATION & FLOWERING+PYQS

Plants requiring vernalization but not given cold treatment generally show:

Answer: C) Delayed flowering or remain vegetative. 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) Early flowering; B) Normal flowering; D) Seed abortion. 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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VERNALIZATION & FLOWERING+PYQS

Vernalization primarily results in acquisition of:

Competence to flower (B) is correct here. This is core VERNALIZATION & FLOWERING: once you know the definition or pathway step, Competence to flower is the clear fit. The wrong ones are A) Immediate flowering; C) Seed dormancy; D) Stem elongation. If the topic is about gradients or potentials, water/solutes move from higher to lower of the relevant quantity.

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

Primary site of cold perception during vernalization is:

That points to C: Shoot apical meristem. Compared with the other options, Shoot apical meristem is the one that correctly describes the VERNALIZATION & FLOWERING concept. The wrong ones are A) Leaves; B) Roots; D) Flowers. 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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