AP BIOLOGY

Detailed explanation-1: -Simple, or conservative transposition, is a non-replicative mode of transposition. That is, in conservative transposition the transposon is completely removed from the genome and reintegrated into a new, non-homologous locus, the same genetic sequence is conserved throughout the entire process.

Detailed explanation-2: -DNA transposons move from one genomic location to another by a cut-and-paste mechanism. They are powerful forces of genetic change and have played a significant role in the evolution of many genomes. As genetic tools, DNA transposons can be used to introduce a piece of foreign DNA into a genome.

Detailed explanation-3: -Transposons are repetitive DNA sequences that have the capability to move (transpose) from one location to another in genome. Transposon movement can result in mutations, alter gene expression, induce chromosome rearrangements and, due to increase in copy numbers, enlarge genome sizes.

Detailed explanation-4: -Ä Mechanism of transposition (13-11); Transposable elements can move via replicative and conservative transposition (13-12); Replicative transposition generates another copy and conservative transposition moves the existing copy (13-13).