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Related Concept Videos

Human Genetics01:28

Human Genetics

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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.
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Behavioral Genetics and Its Designs01:23

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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.
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Gregor Mendel's work (1822 - 1884) was primarily focused on pea plants. Through his initial experiments, he determined that every gene in a diploid cell has two variants called alleles inherited from each parent. He suggested that amongst these two alleles, one allele is dominant in character and the other recessive. The combination of alleles determines the phenotype of a gene in an organism.
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Evolutionary Psychology01:20

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Evolutionary psychology explores the origins of human behavior and mental processes by framing them within the context of natural selection, a theory famously propounded by Charles Darwin. This field asserts that many behaviors common across human societies — ranging from instinctive fear reactions to complex social interactions — arose as evolutionary adaptations. These adaptations enhanced the survival and reproductive success of our ancestors, thereby becoming embedded in the...
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Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...
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Diploid organisms have two alleles of each gene, one from each parent, in their somatic cells. Therefore, each individual contributes two alleles to the gene pool of the population. The gene pool of a population is the sum of every allele of all genes within that population and has some degree of variation. Genetic variation is typically expressed as a relative frequency, which is the percentage of the total population that has a given allele, genotype or phenotype.
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Updated: Jul 29, 2025

Navigating MARRVEL, a Web-Based Tool that Integrates Human Genomics and Model Organism Genetics Information
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Human genetics seen through an evolutionary lens.

Chris P Ponting1

  • 1MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh EH4 2XU, UK.

Cell Genomics
|May 25, 2023
PubMed
Summary
This summary is machine-generated.

Most DNA sequences essential for life show little change across species over evolutionary time. A recent study compared human DNA to 239 other mammals, revealing insights into human DNA and its variations.

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Area of Science:

  • Genomics
  • Evolutionary Biology
  • Comparative Genomics

Background:

  • Most DNA bases critical for species survival exhibit minimal sequence variation across related species over extended evolutionary periods.
  • Recent research has illuminated human DNA and its variants by comparing them with the genomes of 239 other mammalian species.

Discussion:

  • The study highlights conserved DNA regions across mammalian evolution, suggesting functional importance.
  • Analysis of human DNA variants in the context of mammalian genomes provides a broader evolutionary perspective.

Key Insights:

  • Identified conserved DNA sequences across 239 mammalian species.
  • Characterized human DNA variants through comparative genomic analysis with mammals.

Outlook:

  • Further research can leverage this comparative genomic dataset to understand human-specific genetic adaptations.
  • This work provides a foundation for future studies on the evolutionary pressures shaping mammalian genomes.