What sequences or structures within the DNA can be used to identify sites of transposition?
A)target site duplication and direct repeats
B)target site duplication and short tandem repeats
C)inverted loops
D)target site inversion and direct repeats
E)chromosome translocation and insertion of transposase gene

Question

Quizplus · Accepted Answer

Target site duplication (TSD) and direct repeats (DR) are common indicators of transposition. TSDs are created when the transposon inserts itself into the target DNA, leaving behind a duplication of the target site. DRs, on the other hand, are created when the transposon is excised from the donor DNA, carrying a portion of the flanking DNA with it, which can then reinsert elsewhere, leaving a short repeat of DNA in its wake. These sequences can be used to identify where transposon insertion has occurred.

What Sequences or Structures Within the DNA Can Be Used