Home Site Map Contact Us
Rapid Learning Member Login  
Rapid Learning Blog Rapid Learning on Facebook Rapid Learning on Youtube Rapid Learning on Twitter
 How to Learn in 24 Hours?

 Need Help?
M-F: 9am-5pm(PST):
Toll-Free: (877) RAPID-10
US Direct: (714) 692-2900
Int'l: 001-714-692-2900


24/7 Online Technical Support:
The Rapid Support Center

Secure Online Order:
Buy Now

 

 Got Questions?
Frequently Asked Questions
 Need Proof?
Testimonials by Our Users

Trustlink is a Better Business Bureau Program.
Rapid Learning Center is a fivr-star business.

External TrustLink Reviews




 Member Login:
User ID: 
Password: 
 

 Rapid Learning Courses:

Chemistry in 24 Hours

Biology in 24 Hours

Physics in 24 Hours

Mathematics in 24 Hours

Psychology in 24 Hours

SAT in 24 Hours

ACT in 24 Hours

AP in 24 Hours

CLEP in 24 Hours

MCAT in 24 Hours (Medical)

USMLE in 24 Hours (Boards)

DAT in 24 Hours (Dental)

OAT in 24 Hours (Optometry)

PCAT in 24 Hours (Pharmacy)

Nursing Entrance Exams

Certification in 24 Hours

eBook - Survival Kits

Audiobooks (MP3)


 Tell-A-Friend:
Have friends taking science and math courses too? Tell them about our rapid learning system.

Home »  Biology »  Genetics

Transposable Genetic Element

Topic Review on "Title":

Introduction
Transposable elements are also called jumping genes, or transposons.  They are a heterogeneous class of genetic elements that can insert at new locations on chromosomes. Transposons are classified into three major groups: Class I, retrotransposons; Class II, DNA transposons; Class III, miniature inverted-repeat transposable elements. 

Structure and mechanism of transposons
Transposons have direct repeat flanking sequences that are not part of the transposons, and terminal inverted repeats that are part of the transposons.  DNA transopsons translocate via a cut-and-paste mechanism, retrotransposons translocate via copy-and-paste mechanism.

Transposons in different organisms
Transposons exist in all organisms including bacteria.  Bacteria transposons include two related classes: IS and Tn elements, both of which are DNA transposons.  In Drosophila, P element is DNA transposon, while Copia and Gypsie are retrotransposons.  Maize has many different types of transposons, including Ac/Ds elements (DNA transposon) and MITEs.  Ty elements (retrotransposons) are well-studied in yeast. 

Genetic effect of transposons
Because they move around the genome, transposons cause significant changes in genome organization and gene sequence.  They can give insertion/deletion mutant and chromosomal inversion mutant.  Transposons are used as tools in gene delivery or targeted mutation.


Rapid Study Kit for "Title":
Flash Movie Flash Game Flash Card
Core Concept Tutorial Problem Solving Drill Review Cheat Sheet

"Title" Tutorial Summary :
Transposable elements are also a heterogeneous class of genetic elements that can insert at new locations on chromosomes. They are classified into three major groups: Class I, retrotransposons; Class II, DNA transposons; and Class III, miniature inverted-repeat transposable elements.  Class I retrotransposon translocate via copy-and-paste mechanism, class II retrotransposon translocate via cut-and-paste mechanism, while the mechanism for MITEs are unknown.  Transposons cause chromosomal mutations such as deletion, insertion and inversion.  They are also used as tools for gene delivery and targeted gene mutation. 

Tutorial Features:
  • Concept map of transposons related to other types of DNA is given.
  • Concept map of transposon types, mechanisms and structures.
  • Detailed transposon structure including its flanking direct repeats and terminal inverted repeats
  • Detailed diagram to show translocation mechanisms
  • Thought-provoking questions for each section

"Title" Topic List:

Introduction

  • Definitions
  • Discovery of transposable elements

Types of transposable elements

  • Types of retrotransposon
  • LINEs
  • SINEs
  • Class II transposons
  • MITEs

Structure and mechanism of transposons

  • Direct repeat of retrotransposons
  • Terminal inverted repeats
  • Transposition of retrotransposons
  • Transposition of class II transposons
  • Replicative vs non-replicative transposons
  • Regulation of transposition

Transposons in different organisms

  • Transposons in Drosophila
  • Transposons in maize
  • Transposons in yeast
  • Transposons in bacteria

Genetic effect of transposons

  • Insertion/deletion mutant
  • Inversion
  • Gene delivery
  • Transposon-tagging

See all 24 lessons in Genetics, including concept tutorials, problem drills and cheat sheets:
Teach Yourself Genetics Visually in 24 Hours

Home »  Biology »  Genetics
© 2015 Rapid Learning Inc. All rights reserved         Disclaimer | Privacy Policy | Affiliates