Q. Assertion: Chromosome elimination in somatic hybrids is a highly predictable process used for precise gene mapping. 

Reason: Genetic instability is a common limitation in somatic hybrids, particularly in wide interfamilial crosses, often resulting in abnormal or sterile plants.

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#Question id: 37957

#Plant Biotechnology

During the induction phase (e.g., in Nicotiana tabacum), which significant cytoplasmic event occurs? 

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#Question id: 37958

#Plant Biotechnology

What approximate percentage of the total pollen population constitutes the "responsive" fraction (S-grains)? 

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#Question id: 37959

#Plant Biotechnology

In the context of pollen embryogenesis, which of the following best describes the "commitment to androgenesis"? 

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#Question id: 37960

#Plant Biotechnology

During the induction phase of pollen culture in wheat, which specific protein is synthesized under the regulation of ABA (Abscisic Acid)? 

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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?