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#Question id: 19756


Who was proposed valence-bond theory ?

#XL - P Chemistry
  1. Mulliken
  2. Lenus Pauling
  3. Hittler and Londan
  4. Hund


Answer:- Option(s): 3


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#Question id: 16496

#XL - R Botany

Neomycin phosphotransferase  gene is used as a selectable marker. It provides resistence against which antibiotic ?

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#Question id: 20154

#XL - P Chemistry

If r is the radius of first orbit, the radius of nth orbit of the H atom will be

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#Question id: 8789

#XL - R Botany

If additional DNA sequence evidence shows that yeast genes for synthesizing proteins are more similar to protein-synthesizing genes in bacteria than those in archaea, a modern systematist would ________.

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#Question id: 8928

#XL - S Microbiology

An adult animal that possesses bilateral symmetry is most certainly also

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#Question id: 11737

#XL - R Botany

Cytokinins have been shown to have effects on many physiological and developmental processes, including____

a) Leaf senescence

b) Apical dominance

c) Gametophytic  development

d) Vascular development

e) Breaking of bud dormancy

f) Causing bud dormancy

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