Traits change within the lifetime of individuals because of their needs, illustrated here by giraffes that need longer neck to reach high leaves. Changes that are acquired during this generation are passed on to the next generation, that hypothesis is under_____

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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.

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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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