#blue light signalling question

Phototropin+All PYQS

phot1 phot2 double mutant shows:

Go with D — No chloroplast movement. Under Phototropin+All, 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) Normal responses; B) Only accumulation; C) Only avoidance. 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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Phototropin+All PYQS

In darkness, phototropin kinase activity is:

Pick C: Inhibited. Thinking through Phototropin+All step by step rules out the lookalikes and leaves Inhibited. Skip these: A) Activated; B) Unchanged; D) Degraded. 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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cryptochrome

CRY2 promotes flowering by interacting with which transcription factor?

Correct option is B, CIB1. In cryptochrome problems like this, the accurate statement is CIB1; the others are common mix-ups. Not these: A) HY5; C) PIF; D) CO. 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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cryptochrome

Overexpression of cryptochrome C-terminal region alone causes plants to:

Show cop mutant-like phenotype (B) is correct here. This is core cryptochrome: once you know the definition or pathway step, Show cop mutant-like phenotype is the clear fit. The wrong ones are A) Behave like dark-grown seedlings; C) Lose photomorphogenesis; D) Fail to germinate. 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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