Consumption efficiency is the proportion of production at one trophic level that is eaten by, or ingested, by the next trophic level which of the following are correct statement ?

A.Consumption efficiencies higher in  forests than grassland

B-In aquatic ecosystems consuption efficiencies of hervivore are greater than terrestrial hervivore

C- Consumption efficiencies for carnivores are typically higher than those of herbivores

D-Primary production consumption is increased where it is high in nutrients such as nitrogen and phosphorus

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#Question id: 37961

#Plant Biotechnology

What is the primary role of "late" genes expressed after the first mitosis in pollen development? 

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#Question id: 37962

#Plant Biotechnology

Once responsive pollen becomes multicellular and bursts to release a cell mass, what determines whether it forms a globular embryo or a callus? 

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#Question id: 37963

#Plant Biotechnology

In cereal species like rice, wheat, rye, and maize, how can the formation of embryos or calli be specifically induced? 

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#Question id: 37964

#Plant Biotechnology

Assertion (A): The suppression of 'late' pollen maturation genes is a critical step for successful androgenesis. 

Reason (R): The expression of these 'late' genes promotes the normal gametophytic pathway, preventing the switch to embryogenesis.

Select the correct option from:

TLS Online TPP Program

#Question id: 37965

#Plant Biotechnology

Assertion (A): During the induction phase of pollen culture, total protein synthesis is completely halted. 

Reason (R): Existing proteins are suppressed, and new proteins like napin (in Brassica napus) are synthesized.

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TLS Online TPP Program

#Question id: 37966

#Plant Biotechnology

Assertion (A): Commitment to androgenesis is achieved primarily by the abolition of pollen maturation gene expression. 

Reason (R): During induction, several hundred genes are upregulated or downregulated to facilitate the developmental switch

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