#Arabidopsis

Ethylene

Ethylene receptor family in Arabidopsis consists of:

Answer: C) Five receptors. For Ethylene, remember the key idea and you’ll land on this option; the distractors usually swap cause and effect or confuse similar terms. Avoid: A) Two receptors; B) Three receptors; D) Seven receptors. 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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Gibberellins

F-box protein involved in GA signaling in Arabidopsis is:

Go with B — SLY1. Under Gibberellins, 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) COI1; C) TIR1; D) AFB. 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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cryptochrome

CRY2 protein is preferentially degraded under:

Go with C — Blue light. Under cryptochrome, 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) Red light; B) Darkness; D) Far-red light. 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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cryptochrome

CRY2 overexpression mainly enhances:

Answer: B) Cotyledon expansion. For cryptochrome, remember the key idea and you’ll land on this option; the distractors usually swap cause and effect or confuse similar terms. Avoid: A) Hypocotyl elongation; C) Root growth; D) Leaf senescence. 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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cryptochrome

Which cryptochrome isoform primarily inhibits hypocotyl elongation?

Correct option is A, CRY1. In cryptochrome problems like this, the accurate statement is CRY1; the others are common mix-ups. Not these: B) CRY2; C) CRY3; D) All equally. 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

How many cryptochrome genes are present in Arabidopsis?

That points to C: Three. Compared with the other options, Three is the one that correctly describes the cryptochrome concept. The wrong ones are A) One; B) Two; D) Five. 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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ABC MODEL+PYQS

Loss of class C gene function leads to absence of:

That points to C: Stamens and carpels. Compared with the other options, Stamens and carpels is the one that correctly describes the ABC MODEL concept. The wrong ones are A) Sepals and petals; B) Petals and stamens; D) Sepals only. 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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ABC MODEL+PYQS

Mutation in class B genes results in absence of:

Pick B: Petals and stamens. Thinking through ABC MODEL step by step rules out the lookalikes and leaves Petals and stamens. Skip these: A) Sepals and petals; C) Stamens and carpels; D) Sepals only. 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

If class A genes are mutated, which organs are absent?

Pick A: Sepals and petals. Thinking through ABC MODEL step by step rules out the lookalikes and leaves Sepals and petals. Skip these: B) Petals and stamens; C) Stamens and carpels; D) Sepals and carpels. 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

Class A and Class C genes show which interaction?

Pick C: Mutual antagonism. Thinking through ABC MODEL step by step rules out the lookalikes and leaves Mutual antagonism. Skip these: A) Synergistic; B) Independent; D) Co-dominance. 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

Class C gene in Arabidopsis is:

Correct option is D, AGAMOUS. In ABC MODEL problems like this, the accurate statement is AGAMOUS; the others are common mix-ups. Not these: A) AP1; B) AP2; C) AP3. 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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