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Related Concept Videos

Human Genetics01:28

Human Genetics

1.7K
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...
1.7K
Obesity01:24

Obesity

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The Body Mass Index (BMI) is a numerical value derived from a person's weight and height, used to categorize individuals into weight ranges. It is calculated using the formula: weight in kilograms divided by height in meters squared. Obesity is a health condition characterized by excessive accumulation of adipose tissue that poses health risks, often diagnosed with a BMI ≥ 30. This excess fat storage occurs when surplus dietary calories are converted into triglycerides and stored in...
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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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Incomplete Dominance01:43

Incomplete Dominance

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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.
30.7K
Polygenic Traits01:18

Polygenic Traits

69.5K
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...
69.5K
Genomic Imprinting and Inheritance02:30

Genomic Imprinting and Inheritance

37.8K
Diploid organisms inherit genetic material through chromosomes from both parents. Copies of the same gene are known as alleles. In most cases, both alleles are simultaneously expressed and allow various cellular processes to function optimally. If one of the alleles is missing or mutated, the expression of the other allele can compensate; however, this is not true for all genes.
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
37.8K

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Related Experiment Video

Updated: Feb 26, 2026

Sample Preparation to Bioinformatics Analysis of DNA Methylation: Association Strategy for Obesity and Related Trait Studies
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Sample Preparation to Bioinformatics Analysis of DNA Methylation: Association Strategy for Obesity and Related Trait Studies

Published on: May 6, 2022

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Genetics of obesity.

Lesley V Campbell Am

    Australian Family Physician
    |July 12, 2017
    PubMed
    Summary

    Genetic research is uncovering the complex causes of human obesity, highlighting its heritable nature. Early identification of rare genetic obesity syndromes is now possible, offering hope for future treatments.

    Area of Science:

    • Genetics
    • Human Physiology
    • Endocrinology

    Background:

    • Rising prevalence and cost of overweight and obesity in modern environments.
    • Significant heritability of obesity, ranging from 40-80%.

    Purpose of the Study:

    • Review recent genetic discoveries related to human obesity.
    • Describe familial and syndromic obesity for early specialist diagnosis.
    • Summarize implications of genetic findings for general practice.

    Main Methods:

    • Review of specialized genetic studies.
    • Analysis of research on body fat regulation and control.
    • Literature review on syndromic obesity identification.

    Main Results:

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  • Advancements in understanding the genetic basis of body fat regulation.
  • Identification of rare syndromic obesity with early onset.
  • Discovery of potential targets for future anti-obesity medications.

    • Conclusions:

    • Genetic studies are crucial for unraveling obesity's complex physiology.
    • Early diagnosis of rare genetic obesity syndromes is achievable.
    • Future drug development offers hope, and understanding heritability can reduce patient blame.