All the animals with vertebrae form a single phylogenetic branch of species that share a common ancestor, concluded by

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#Question id: 12587

#Unit 10. Ecological Principles

The most plausible  hypothesis to  explain why  species richness is  higher in  tropical  than in  temperate regions is that

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#Question id: 10420

#Unit 6. System Physiology – Plant

 A toggle model has been proposed for phytochrome interconversion, according to this model which option is correct?

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#Question id: 33382

#Unit 1. Molecules and their Interaction Relevant to Biology

What is correct order of X ray diffraction method to analyze helix structure

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#Question id: 12528

#Unit 6. System Physiology – Plant

According to a recent model, the balance between the activities of ABA and gibberellin in seeds is under both developmental and environmental control such as

a) early stages of seed development, ABA sensitivity is high and gibberellin sensitivity is low, which favors dormancy over germination

b) Later in seed development, ABA sensitivity declines and gibberellin sensitivity increases, favoring germination.

c) Environmental factors such as temperature  and light affect the ABA:GA ratios by activation of the  NCED and GA2ox enzyme, which promotes seed dormancy

d) During an Ambient environment, activation of GA3ox and CYP707A2 inducing dormancy

Which of the following combination  from the above statements is incorrect?

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#Question id: 33241

#Unit 1. Molecules and their Interaction Relevant to Biology

Carbonic anhydrase contains an essential Zn²⁺ ion which is involved in