WHAT IS MOBILE GENETIC ELEMENT ?
Asked By Faraz Siddiqui
WHAT IS MOBILE GENETIC ELEMENT?
Replied by Admin
WHAT IS MOBILE GENETIC ELEMENT ? Mobile genetic elements are a type of DNA that can move around within the genome and can replicate and insert copies at random sites within chromosomes. They have nearly identical sequences at each end, oppositely oriented (inverted) repeats and code for the enzyme, transposase, that catalyses their insertion. Bacteria have two types of transposon: - simple transposons : have only the genes needed for insertion - complex transposon: contain genes in addition to those needed for insertion. Eukaryotes contain two classes of mobile genetic elements, they include: - Transposons : They are like bacterial transposons in that dNA sequences move directly - Retrotransposons: They move by producing RNA that is transcribed, by reverse transcriptase, into dNA which is then inserted at a new site.
- 26 Oct 2017 @ 04:30