Transposons - for the those enzymes required for its...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Transposons Transposable elements, or transposons, are jumping genes; these are DNA fragments that can move within a genome. Transposons are not replicons, they do not replicate autonomously. Transposons are not episomes, transposons only exist in association with a segment of DNA with an origin of replication. The limits of transposons are defined by the inverted repeat DNA process. Inverted repeat sequences exist on both ends of an insertion sequence. The IS element contains only the genes
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: for the those enzymes required for its transposition and bound is bounded at both ends by inverted repeats. Transposons contain very few genes: the transposase gene required for transposition, and may contain genes encoding for antibiotic resistance or toxins. Transposons can insert into a gene, and it is possible to produce mutation if indiscriminate insertion changes the reading frame. Transposons exist in bacteria, plants, and animals....
View Full Document

This note was uploaded on 04/01/2008 for the course MICRB 201 taught by Professor Sodeinde,olanrewa during the Fall '08 term at Penn State.

Ask a homework question - tutors are online