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Allopatric Speciation
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Educational Use
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These images from the Smithsonian Institution depict Nancy Knowlton's work with snapping shrimp in Panama. Knowlton found that the closing of the isthmus -- dividing the Pacific Ocean from the Caribbean -- resulted in new species of shrimp.

Subject:
Life Science
Science
Material Type:
Diagram/Illustration
Reading
Provider:
PBS LearningMedia
Author:
National Science Foundation
WGBH Educational Foundation
Date Added:
09/26/2003
Amplifying Power of PCR
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Educational Use
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This interactive will present the mathematical consideration of exponentially
enriching a piece of DNA using PCR. Typically, a PCR protocol will repeat
approximately 30 cycles of denaturation, annealing, and elongation. 30 cycles of
PCR produce around 1 billion copies of the amplified region.

Subject:
Biology
Science
Material Type:
Interactive
Provider:
LabXchange
Provider Set:
LabXchange Interactives
Date Added:
09/08/2020
Bacteria Transformation
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Educational Use
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Students construct paper recombinant plasmids to simulate the methods genetic engineers use to create modified bacteria. They learn what role enzymes, DNA and genes play in the modification of organisms. For the particular model they work on, they isolate a mammal insulin gene and combine it with a bacteria's gene sequence (plasmid DNA) for production of the protein insulin.

Subject:
Engineering
Life Science
Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Kimberly Anderson
Matthew Zelisko
Date Added:
09/18/2014
The Benefits of Biodiversity
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Educational Use
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Students toss coins to determine what traits a set of mouse parents possess, such as fur color, body size, heat tolerance, and running speed. Then they use coin tossing to determine the traits a mouse pup born to these parents possesses. Then they compare these physical features to features that would be most adaptive in several different environmental conditions. Finally, students consider what would happen to the mouse offspring if those environmental conditions were to change: which mice would be most likely to survive and produce the next generation?

Subject:
Engineering
Life Science
Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Mary R. Hebrank
Date Added:
10/14/2015
Biology 2e
Unrestricted Use
CC BY
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Biology 2e is designed to cover the scope and sequence requirements of a typical two-semester biology course for science majors. The text provides comprehensive coverage of foundational research and core biology concepts through an evolutionary lens. Biology includes rich features that engage students in scientific inquiry, highlight careers in the biological sciences, and offer everyday applications. The book also includes various types of practice and homework questions that help students understand—and apply—key concepts. The 2nd edition has been revised to incorporate clearer, more current, and more dynamic explanations, while maintaining the same organization as the first edition. Art and illustrations have been substantially improved, and the textbook features additional assessments and related resources.

Subject:
Biology
Material Type:
Full Course
Provider:
Rice University
Provider Set:
OpenStax College
Date Added:
03/07/2018
Biology 2e, Genetics, Genes and Proteins, Eukaryotic Transcription
Unrestricted Use
CC BY
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By the end of this section, you will be able to do the following:

List the steps in eukaryotic transcription
Discuss the role of RNA polymerases in transcription
Compare and contrast the three RNA polymerases
Explain the significance of transcription factors

Material Type:
Module
Date Added:
09/20/2018
Biology 2e, Genetics, Genes and Proteins, Prokaryotic Transcription
Unrestricted Use
CC BY
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By the end of this section, you will be able to do the following:

List the different steps in prokaryotic transcription
Discuss the role of promoters in prokaryotic transcription
Describe how and when transcription is terminated

Material Type:
Module
Date Added:
09/20/2018
Biology 2e, Genetics, Genes and Proteins, The Genetic Code
Unrestricted Use
CC BY
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By the end of this section, you will be able to do the following:

Explain the “central dogma” of DNA-protein synthesis
Describe the genetic code and how the nucleotide sequence prescribes the amino acid and the protein sequence

Material Type:
Module
Date Added:
09/20/2018
Biology 2e, Genetics, Mendel's Experiments and Heredity, Laws of Inheritance
Unrestricted Use
CC BY
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By the end of this section, you will be able to do the following:

Explain Mendel’s law of segregation and independent assortment in terms of genetics and the events of meiosis
Use the forked-line method and the probability rules to calculate the probability of genotypes and phenotypes from multiple gene crosses
Explain the effect of linkage and recombination on gamete genotypes
Explain the phenotypic outcomes of epistatic effects between genes

Material Type:
Module
Date Added:
09/20/2018
Biology 2e, The Cell, Cell Reproduction, Cell Division
Unrestricted Use
CC BY
Rating
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By the end of this section, you will be able to do the following:

Describe the structure of prokaryotic and eukaryotic genomes
Distinguish between chromosomes, genes, and traits
Describe the mechanisms of chromosome compaction

Material Type:
Module
Date Added:
09/20/2018