_____________ promotes recombination between specific sites on the plasmid if the same site occurs more than once in the molecule, as it would in a dimer or multimer.

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#Question id: 20145

#XL - P Chemistry

The radius of first Bohr orbit is , then de-Broglie wavelength of electron in 3rd orbit is nearly

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#Question id: 20146

#XL - P Chemistry

With increasing principle quantum number, the energy difference between adjacent energy levels in H atom

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#Question id: 20147

#XL - P Chemistry

The electrons present in K-shell of the atom will differ in

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#Question id: 20148

#XL - P Chemistry

The ratio of the ionization energy of H and Be³⁺ is..............

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#Question id: 20149

#XL - P Chemistry

The maximum number of electrons in a subshell for which l=3 is

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#Question id: 20150

#XL - P Chemistry

The number of electrons in the M shell of the clement with atomic number 24 is