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  • Genetics
Classifying Animals by Appearance Versus DNA Sequence
Conditions of Use:
Remix and Share
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The topic of this video module is how to classify animals based on how closely related they are. The main learning objective is that students will learn how to make phylogenetic trees based on both physical characteristics and on DNA sequence. Students will also learn why the objective and quantitative nature of DNA sequencing is preferable when it come to classifying animals based on how closely related they are. Knowledge prerequisites to this lesson include that students have some understanding of what DNA is and that they have a familiarity with the base-pairing rules and with writing a DNA sequence.

Subject:
Biology
Genetics
Material Type:
Lecture
Provider:
M.I.T.
Provider Set:
M.I.T. Blossoms
Author:
Megan E. Rokop
Date Added:
06/11/2012
Gene Machine: The Lac Operon (AR)
Conditions of Use:
Read the Fine Print
Rating

Build a gene network! The lac operon is a set of genes which are responsible for the metabolism of lactose in some bacterial cells. Explore the effects of mutations within the lac operon by adding or removing genes from the DNA.

Subject:
Genetics
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
George Speigelman
Jared Taylor
John Blanco
Kathy Perkins
Noah Podolefsky
Date Added:
05/01/2010
Molecular Motors (AR)
Conditions of Use:
Read the Fine Print
Rating

Discover what controls how fast tiny molecular motors in our body pull through a single strand of DNA. How hard can the motor pull in a tug of war with the optical tweezers? Discover what helps it pull harder. Do all molecular motors behave the same?

Subject:
Genetics
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Chris Malley
Kathy Perkins
Meredith Betterton
Michael Dubson
Thomas Perkins
Wendy Adams
Date Added:
12/01/2007
تقطيع الحمض النووي (عربي)
Conditions of Use:
قراءة النص المطبوع بخط رفيع
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Explore stretching just a single strand of DNA using optical tweezers or fluid flow. Experiment with the forces involved and measure the relationship between the stretched DNA length and the force required to keep it stretched. Is DNA more like a rope or like a spring?

الموضوع:
علم الوراثة
نوع المادة:
محاكاة
Provider:
University of Colorado Boulder
Provider Set:
المحاكاة التفاعلية لموقع PhET
المؤلف:
Chris Malley
Kathy Perkins
Meredith Betterton
Michael Dubson
Thomas Perkins
Wendy Adams
Date Added:
12/01/2007