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Related Concept Videos

Inheritance01:25

Inheritance

1.3K
Gregor Mendel's pioneering work on the principles of inheritance fundamentally transformed our understanding of how traits are transmitted from generation to generation. His experiments with pea plants laid the groundwork for the discovery of genes, discrete units within organisms that control heredity.
Each gene exists in pairs, and the combination of these genes from both parents forms an individual's genotype. This genotype is a blueprint of potential traits. Examples of genotype...
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Human Genetics01:28

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Human genetics provides a profound framework for understanding the interplay between genetic predispositions and human psychology. At the heart of this discipline lies the study of how genes influence physical traits, behaviors, and susceptibility to diseases. Each person carries a unique genetic code that subtly or significantly shapes their psychological and behavioral landscape.
The complex relationship between genetics and psychology is observable through common biological components such...
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Background and Environment Affect Phenotype02:27

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Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
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Genetic Lingo01:11

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Overview
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Epistasis Analysis01:09

Epistasis Analysis

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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...
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Behavioral Genetics and Its Designs01:23

Behavioral Genetics and Its Designs

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Behavior genetics explores how genetic inheritance influences human behavior. It focuses on how genes, passed from parents to offspring, contribute to the development of behavioral traits and tendencies. This branch of genetics seeks to understand the complex interplay between inherited genetic factors and environmental influences in shaping our behaviors.
The primary methodologies used in behavior genetics include family studies, twin studies, and adoption studies, each providing unique...
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Related Experiment Video

Updated: Dec 20, 2025

A Phenotyping Regimen for Genetically Modified Mice Used to Study Genes Implicated in Human Diseases of Aging
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Genetics of Biochemical Phenotypes.

John B Whitfield1

  • 1Genetic Epidemiology, QIMR Berghofer Medical Research Institute, Brisbane, Australia.

Twin Research and Human Genetics : the Official Journal of the International Society for Twin Studies
|June 3, 2020
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Summary

Genetic variation influences biomarker phenotypes, aiding disease risk assessment. Studies in general populations complement patient data, evolving biomarker genetics research over 40 years.

Keywords:
Heritabilitycandidate gene studiesgenetic linkagegenomewide association studies

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Area of Science:

  • Biomarker discovery and genetics.
  • Population genetics and disease risk.

Background:

  • Biomarkers are crucial for diagnosing, predicting, and assessing disease risk.
  • Genetic variation significantly impacts biomarker phenotypes.

Discussion:

  • Studies on biomarker genetics in the general population provide complementary insights to patient-based research.
  • The field has evolved significantly over the past four decades.

Key Insights:

  • Understanding genetic influences on biomarkers enhances disease risk prediction.
  • Integrating population and patient data offers a comprehensive view of biomarker genetics.

Outlook:

  • Continued research into genetic variations will refine biomarker utility.
  • Advancements in biomarker genetics will improve personalized medicine approaches.