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#biology exam preparation

13 public questions tagged with this topic.

Vernalization causes flowering by:

Go with B — Epigenetically silencing FLC. 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) Activating FLC; C) Degrading FT protein; D) Repressing SOC1. 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.

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.

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.

Which genes constitute class B in ABC model?

AP3 and PI (B) is correct here. This is core ABC MODEL: once you know the definition or pathway step, AP3 and PI is the clear fit. The wrong ones are A) AP1 and AP2; C) AG and SEP; D) LFY and AP1. 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.

During plasmolysis, the protoplast:

Pick C: Shrinks away from cell wall. Thinking through BASICS of PLANT step by step rules out the lookalikes and leaves Shrinks away from cell wall. Skip these: A) Swells; B) Remains unchanged; D) Bursts. 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.