A herbicides dichlorophenyldimethylurea (DCMU) is known as diuron an inhibitor of photosynthetic electron transport. Which one of the following option would be correct about diuron?

a.) Blocks electron flow at the plastoquinone acceptors of PSII by competing for the binding site of plastoquinone

b.) causes a partial inhibition of stomatal closing

c.) accepts electrons from the early acceptors of PSI such as A0 and then reacts with oxygen to form superoxide, O2 –

d.) causes a partial inhibition of light-stimulated stomatal opening

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#Question id: 28377

#Unit 5. Developmental Biology

 Which of the following gene is activated in cells that have high levels of the Even-skipped, Fushi tarazu, or Paired & repressed in cells that have high levels of Odd-skipped, Runt, or Sloppy-paired?

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#Question id: 28378

#Unit 5. Developmental Biology

 Which of the following gene is activated in those bands of cells that receive little or no Even-skipped or Fushi tarazu protein, but which do contain Sloppy-paired

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#Question id: 28379

#Unit 5. Developmental Biology

 during drosophila development, Various signalling pathway occur one of them a protein is act as an autocrine fashion and maintaining its own expression, this protein is known as___

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#Question id: 28380

#Unit 5. Developmental Biology

The homologue of β-catenin in Drosophila is___

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#Question id: 28381

#Unit 5. Developmental Biology

The homologue of TGF-β in Drosophila is___

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#Question id: 28382

#Unit 5. Developmental Biology

Antennapedia(Antp) and Ultrabithorax (Ubx) are the two homeotic gene, which is required for the identity of the segments such as?

a) Antennapedia(Antp) is required for the identity of the third thoracic segment 

b) Antennapedia(Antp) is required for the identity of the second thoracic segment

c) Ultrabithorax (Ubx) is required for the identity of the third thoracic segment

d) Ultrabithorax (Ubx) is required for the identity of the second thoracic segment