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Related Concept Videos

Polygenic Traits01:18

Polygenic Traits

When more than one gene is responsible for a given phenotype, the trait is considered polygenic. Human height is a polygenic trait. Studies have uncovered hundreds of loci that influence height, and there are believed to be many more. Due to the high number of genes involved, as well as environmental and nutritional factors, height varies significantly within a given population. The distribution of height forms a bell-shaped curve, with relatively few individuals in the population at the...
Polygenic Traits01:18

Polygenic Traits

When more than one gene is responsible for a given phenotype, the trait is considered polygenic. Human height is a polygenic trait. Studies have uncovered hundreds of loci that influence height, and there are believed to be many more. Due to the high number of genes involved, as well as environmental and nutritional factors, height varies significantly within a given population. The distribution of height forms a bell-shaped curve, with relatively few individuals in the population at the...
Multiple Allele Traits01:49

Multiple Allele Traits

The Concept of Multiple Allelism
Epistasis Analysis01:09

Epistasis Analysis

Although Mendel chose seven unrelated traits in peas to study gene segregation, most traits involve multiple gene interactions that create a spectrum of phenotypes. When the interaction of various genes or alleles at different locations influences a phenotype, this is called epistasis. Epistasis often involves one gene masking or interfering with the expression of another (antagonistic epistasis). Epistasis often occurs when different genes are part of the same biochemical pathway. The...
Genetic Lingo01:11

Genetic Lingo

Overview
Epistasis01:39

Epistasis

In addition to multiple alleles at the same locus influencing traits, numerous genes or alleles at different locations may interact and influence phenotypes in a phenomenon called epistasis. For example, rabbit fur can be black or brown depending on whether the animal is homozygous dominant or heterozygous at a TYRP1 locus. However, if the rabbit is also homozygous recessive at a locus on the tyrosinase gene (TYR), it will have an unshaded coat that appears white, regardless of its TYRP1...

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In Vivo Modeling of the Morbid Human Genome using Danio rerio
12:31

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Published on: August 24, 2013

A fishy way to discuss multiple genes affecting the same trait.

Michelle Smith1

  • 1School of Biology and Ecology and Research in STEM Education (RiSE) Center, University of Maine, Orono, Maine, United States of America. michelle.k.smith@maine.edu

Plos Biology
|March 14, 2012
PubMed
Summary

This study introduces an interactive teaching method for genetic complementation using blind cavefish. Learning data supports this novel approach for biological education.

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Area of Science:

  • Genetics
  • Educational Technology
  • Developmental Biology

Background:

  • Teaching complex genetic concepts like complementation presents pedagogical challenges.
  • Interactive learning tools are crucial for enhancing student understanding in biology.

Purpose of the Study:

  • To develop and evaluate an interactive teaching method for genetic complementation.
  • To utilize blind cavefish as a model organism for illustrating genetic principles.

Main Methods:

  • An interactive educational approach was designed.
  • Learning data was collected to support the effectiveness of the method.
  • Blind cavefish were used as a case study for genetic complementation.

Main Results:

  • The interactive method showed promise in facilitating understanding of complementation.
  • Learning data indicated positive engagement and comprehension among students.
  • Blind cavefish provided a clear and accessible example for genetic concepts.

Conclusions:

  • Interactive, data-supported methods can effectively teach complex genetic concepts.
  • The use of model organisms like blind cavefish enhances biological education.
  • This approach offers a scalable solution for improving genetics instruction.