Learn. Connect. Create.
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| Audience/Grade: | High School Junior -12 11 - High School Senior |
| Discipline(s): |
Bioengineering and Biomedical Engineering Biological Systems and Agricultural Engineering Life Sciences |
| Special Topic(s): | |
| Learning Resource Type: |
Teaching - Lesson Plan |
| Media Type: |
Unknown |
| Author(s): |
Organization:PBS - Public Broadcasting System |
| Description: | "An embryonic cell divides again and again. Where there was one cell there are two, then four, then eight,... Each holds all the genetic information needed to create a human being. How, exactly, do these cells make copies of themselves? Hair grows from your head, nonstop, day in and day out. The cells of your hair follicles somehow generate all of the protein that make up this hair. How is this protein created? The answers to these questions are DNA replication and protein synthesis. Knowledge of the structure of DNA began with the discovery of nucleic acids in 1869. That genes control the synthesis of enzymes was understood in the 1940s. In 1953, an accurate model of the DNA molecule was presented, thanks to the work of Rosalind Franklin, James Watson, and Francis Crick. The activity in this section places you within the cell, involving you with the processes of DNA replication and protein synthesis." DNA Replication DNA, the molecule that holds genetic information, makes an exact copy of itself whenever a cell divides. In this activity, it's up to you to make the copy. Protein Synthesis DNA controls the manufacture of proteins within a cell through a process called protein synthesis. Your guidance is needed to help this process along. |
| Rating: |
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| Related Resources | |
| Keywords: | DNA double helix |
| References: |
Rosalind Franklin (1920 - 1958) - People and Discoveries |
| Usage Tip | |
| Use of Resource: |
Requires Shockwave. There is also a text version of the activity. |
| Difficulty: |
Medium |
| Interactivity Level: |
Medium |
| Version Info | |
| Publication Date: | October 2008 |
| Platform/Format: |
WWW |
| Cost: |
Free |
| Download URL: | http://www.pbs.org/wgbh/aso/tryit/dna/# |
| Metadata: |
IEEE LOM Record |
| Collection: |
NEEDS
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