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Question

DNA parts which can switch their position are

A
Exons
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B
Introns
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C
Cistrons
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D
Transposons
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Solution

The correct option is C Transposons
1) An exon is any part of a gene that will encode a part of the final mature RNA produced by that gene after introns have been removed by RNA splicing.
2) Introns are noncoding sections of an RNA transcript, or the DNA encoding it, that are spliced out before the RNA molecule is translated into a protein.
3) Cistron is a section of a DNA or RNA molecule that codes for a specific polypeptide in protein synthesis.
4) Transposable elements (TEs), also known as "jumping genes" or transposons, are sequences of DNA that move (or jump) from one location in the genome to another.

So, the correct answer is 'Transposons'.

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