Post a composite review
Unpost a composite review
Search all MERLOT
Select to go to your profile
Select to go to your workspace
Select to go to your Dashboard Report
Select to go to your Content Builder
Select to log out
Search Terms
Enter username
Enter password
Please give at least one keyword of at least three characters for the search to work with. The more keywords you give, the better the search will work for you.
Select OK to launch help window
Cancel help


Advanced Search


Peer Review

Gene Therapy



Overall Numeric Rating:

4 stars
Content Quality: 4 stars
Effectiveness: 3.75 stars
Ease of Use: 4.5 stars
Reviewed: Jun 19, 2011 by Biology Editorial Board
Overview: This site provides users with simple animations accompanied by explanatory text outlining the use of gene therapy in a particular immunodeficiency case study. It includes an animation of gene therapy for the genetic immune deficiency called SCID-X1. Children with this disease have a defective gene. The animation begins with an explanation of the genetic and phenotypic characteristics of severe combined immunodeficiency (SCID) including the region of mutation within the DNA and the resulting effect on the development of immune responsive cells. The animation provides a simplified portrayal of the theoretical mechanism of gene therapy and its implementation in the treatment of this particular disorder. The animation concludes with a sobering look at the results of the case study and the possible complications that gene therapy may pose. It provides a balanced portrayal of the positive possibilities of gene therapy with the negative risks involved in this relatively new treatment. This is a good site for classroom or individual use.
Type of Material: The information is presented as simple animations with accompanying text.
Recommended Uses: The information can be used by students for individual research or by instructors as part of a guided lecture.
Technical Requirements: This site requires a browser to view HTML/Text and Adobe flash player.
Identify Major Learning Goals: Students will utilize the animation and accompanying text to learn about gene therapy in the context of a case study.
Target Student Population: The material presented is appropriate for high school and lower division college classes.
Prerequisite Knowledge or Skills: There are no prerequisites for this site, although some knowledge of simple genetic mechanisms such as replication and cell differentiation may be beneficial.

Evaluation and Observation

Content Quality

Rating: 4 stars
  • The textual information is accurate if not a bit simplified
  • The figures are clearly and accurately labeled
  • The animations are clear and easy to follow
  • Site provides good biological and medical information
  • The depiction of the chromosomes within the cell is not proportional
  • Some of the figures in the animation are oversimplified
  • No indication of the success rate of the procedure, or selections done in vitro to indentify cells that have taken up the new gene

Potential Effectiveness as a Teaching Tool

Rating: 3.75 stars
  • There is text accompanying the animations which makes it useful for guided lectures
  • The site provides an excellent example for the application of gene therapy humanizing the laboratory methodology
  • The site provides stimulation for ethical discussion concerning gene therapy getting students excited and interested in the material
  • Students can control the pace of the presentation
  • No learning objectives are provided
  • Animations are not entirely exciting although they are easy to understand
  • No follow up assessment or requirements of the students to do anything but passively observe the movie

Ease of Use for Both Students and Faculty

Rating: 4.5 stars
  • The animations are simple to navigate and progression through the animation is completely user controlled
  • The information was well organized and easy to follow
  • No defective links or major bugs were found
  • Loads quickly and easy to navigate
  • Requires continual confirmation for animation activation
  • Source code is not available for instructors to make changes