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#Question id: 10367


Cyanobcteria also fixes nitrogen under anaerobic conditions without  heterocyst where?

#Environmental Science
  1. In dry fields   
  2. In dark phase fields
  3. In wet fields     
  4. In flooded fields

Answer:- Option(s): 4


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#Question id: 37956

#Plant Biotechnology

To improve the frequency of androgenesis (pollen response) in tissue culture, which pretreatment is recommended? 

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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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