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#Question id: 19501


The electronic configuration of chromium (Z=24) is:

#XL - P Chemistry
  1. [Ne] 3s2 3p6 3d4 4s2
  2. [Ne] 3s2 3p6 3d5 4s1
  3. [Ne] 3s2 3p6 3d1 4s2
  4. [Ne] 3s2 3p6 4s2 4p4

Answer:- Option(s): 2


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#Question id: 754

#XL - Q Biochemistry

If the twisting of the DNA is in the same direction as that of the double helix, that is the helix is twisted up before closure, this form of super coiling is known as;

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#Question id: 755

#XL - Q Biochemistry

Enzymes that regulate the process of supercoiling termed as;

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#Question id: 756

#XL - Q Biochemistry

The thermal denaturation of DNA may be reversed by cooling the solution. Rapid cooling allows:

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#Question id: 757

#XL - Q Biochemistry

_______________ a bacterial enzyme, uses the energy of ATP hydrolysis to introduce negative supercoiling into DNA hence removing positive supercoiling generated during replication.

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#Question id: 758

#XL - Q Biochemistry

Both miRNAs and one strand of siRNAs are bound by proteins to form a ribonucleoprotein complex called:

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#Question id: 759

#XL - Q Biochemistry

The Watson and Crick structure of DNA refers to:

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