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#Question id: 2791


In mammals, X-chromosome inactivation

#Life Sciences
  1. occurs in half the diploid cells of the adult female.

  2. results from the ionization of the X-chromosome.

  3. is considered an epigenetic event.

  4. b and c


Answer:- Option(s): 3


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#Question id: 23563

#Bio-Informatics

________ is the direct uptake of foreign DNA by a host cell.

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#Question id: 23562

#Bio-Informatics

________ is the propagation of individual host cells containing a recombinant DNA molecule.

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#Question id: 23561

#Bio-Informatics

General steps in the generation of a recombinant DNA molecule in the laboratory include

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#Question id: 23560

#Bio-Informatics

DNA molecules which are constructed with DNA from different sources are called

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#Question id: 18906

#Bio-Informatics

A good vector must have the following properties.
a) It should be able to replicate autonomously.
b) A vector should be ideally less than 10 kb in size
c) The vector should be easy to isolate and purify.
d)  vector should have suitable marker genes that allow easy detection and/or selection of the transformed host cells.
e) it should a multiple cloning site

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#Question id: 18905

#Bio-Informatics

A Vector is a DNA molecule that has the ability to

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