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Autism Spectrum Disorder

Autism Spectrum Disorder

Autism spectrum disorder (ASD) is a neurodevelopmental condition marked by persistent deficits in social communication and interaction alongside restrictive and repetitive behaviors or interests. ASD is sometimes accompanied by intellectual impairment.
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.

Behavioral Genetics and Its Designs

Behavioral Genetics and Its Designs

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...

Genome-wide Association Studies-GWAS

Genome-wide Association Studies-GWAS

Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...

Incomplete Dominance

Incomplete Dominance

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.

Human Genetics

Human Genetics

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...

The Ratio of X Chromosome to Autosomes

The Ratio of X Chromosome to Autosomes

In most organisms, sex is determined by the ratio of X and Y chromosomes. However, in some organisms, such as Drosophila and C.elegans, sex is determined by the ratio of the number of X chromosomes to the number of sets of autosomes. The Y chromosome in Drosophila is active but does not determine sex. It contains genes responsible for the production of sperms in adult flies.
Normal male Drosophila has a ratio of one X chromosome to two sets of autosomes. In contrast, normal female Drosophila...

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Related Experiment Video

Updated: May 20, 2026

A Strategy to Identify de Novo Mutations in Common Disorders such as Autism and Schizophrenia

A Strategy to Identify de Novo Mutations in Common Disorders such as Autism and Schizophrenia

Published on: June 15, 2011

Autism genetics: searching for specificity and convergence.

Jamee M Berg, Daniel H Geschwind

|August 2, 2012

Summary

Genetic and genomic research has advanced the understanding of autism spectrum disorders (ASD). By identifying converging genes across biological systems, scientists aim to improve ASD diagnosis and treatment strategies.

Area of Science:

Neuroscience
Genetics
Genomics

Background:

Autism spectrum disorder (ASD) is a complex neurodevelopmental condition.
Recent advances in genetics and genomics have identified numerous genes associated with ASD.
Understanding the biological underpinnings of ASD requires integrating data from various genetic and genomic studies.

Purpose of the Study:

To identify points of convergence among genes implicated in autism spectrum disorders.
To explore how these genetic convergences manifest across different biological systems.
To lay the groundwork for improved diagnostic and therapeutic strategies for ASD.

Main Methods:

Systematic review of genetic and genomic studies on autism spectrum disorders.
Bioinformatic analysis to identify overlapping gene networks.

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Paradigms for Behavioral Assessment in Drosophila Model of Autism Spectrum Disorder

Paradigms for Behavioral Assessment in Drosophila Model of Autism Spectrum Disorder

Published on: September 6, 2024

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Last Updated: May 20, 2026

A Strategy to Identify de Novo Mutations in Common Disorders such as Autism and Schizophrenia

A Strategy to Identify de Novo Mutations in Common Disorders such as Autism and Schizophrenia

Published on: June 15, 2011

Paradigms for Behavioral Assessment in Drosophila Model of Autism Spectrum Disorder

Paradigms for Behavioral Assessment in Drosophila Model of Autism Spectrum Disorder

Published on: September 6, 2024

Cross-disciplinary data integration to map gene functions across biological systems.

Main Results:

Identification of key biological pathways and molecular functions that are consistently implicated across multiple ASD-associated genes.
Discovery of convergent genetic mechanisms influencing neuronal development and function in ASD.
Establishment of a framework for understanding the polygenic nature of ASD.

Conclusions:

Convergent genetic findings offer a more unified understanding of autism spectrum disorders.
Targeting these convergent biological systems may lead to more effective treatments for ASD.
Further research into these shared genetic pathways is crucial for advancing ASD therapies.