First invertebrates insects fossil appeared in which of the following geological ages?

a) Mesozoic b) Jurassic

c) Paleozoic d) Devonian

e) Permian f) Pennsylvanian

Which of the following combinations give the best answer?

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#Question id: 23316

#General Aptitude

If a student becomes unconscious during the period, what will you like to do?

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#Question id: 13196

#Unit 1. Molecules and their Interaction Relevant to Biology

 In The Mica Experiment Dnase I enzyme cleaves 

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#Question id: 5767

#Unit 8. Inheritance Biology

 An enzyme that repairs thymine dimers in visible light in E. coli

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#Question id: 5222

#Unit 11. Evolution and Behavior

 When does exon shuffling occur?

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#Question id: 15543

#Unit 8. Inheritance Biology

In Benzer's intragenic mapping experiments, what event was required to allow production of infectious phage from rII mutants?