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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.
The complex relationship between genetics and psychology is observable through common biological components such...
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Fruit Development, Structure, and Function01:58

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Fruits form from a mature flower ovary. As seeds develop from the ovules contained within, the ovary wall undergoes a series of complex changes to form fruit. In some fruits, such as soybeans, the ovary wall dries; in other fruits, such as grapes, it remains fleshy. In some cases, organs other than the ovary contribute to fruit formation; such fruits are called accessory fruits.
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Speciation is the evolutionary process resulting in the formation of new, distinct species—groups of reproductively isolated populations.
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What is Population Genetics?01:25

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A population is composed of members of the same species that simultaneously live and interact in the same area. When individuals in a population breed, they pass down their genes to their offspring. Many of these genes are polymorphic, meaning that they occur in multiple variants. Such variations of a gene are referred to as alleles. The collective set of all the alleles within a population is known as the gene pool.
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What is Genetic Engineering?00:49

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Animal Mitochondrial Genetics02:59

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Among all the organelles in an animal cell, only mitochondria have their own independent genomes. Animal mitochondrial DNA is a double-stranded, closed-circular molecule with around 20,000 base pairs. Mitochondrial DNA is unique in that one of its two strands, the heavy, or H, -strand is guanine rich, whereas the complementary strand is cytosine rich and called the light, or L, -strand. Compared to nuclear DNA, mitochondrial DNA has a very low percentage of non-coding regions and is marked by...
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Related Experiment Video

Updated: Feb 11, 2026

An Allele-specific Gene Expression Assay to Test the Functional Basis of Genetic Associations
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An Allele-specific Gene Expression Assay to Test the Functional Basis of Genetic Associations

Published on: November 3, 2010

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Functional genetics of early human development.

Nicolás M Ortega1, Nerges Winblad1, Alvaro Plaza Reyes1

  • 1Department of Clinical Science, Intervention and Technology, Karolinska Institutet, and Division of Obstetrics and Gynecology, Karolinska Universitetssjukhuset, 14186 Stockholm, Sweden.

Current Opinion in Genetics & Development
|May 6, 2018
PubMed
Summary
This summary is machine-generated.

Investigating human embryo genetics using advanced sequencing and gene editing reveals key insights into early development, congenital diseases, and stem cell applications.

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Area of Science:

  • Developmental Biology
  • Stem Cell Biology
  • Genetics

Background:

  • Understanding early human development is crucial for regenerative medicine, infertility treatments, and congenital disease research.
  • Current knowledge largely relies on mouse models, despite significant species-specific differences in developmental timing and genetic mechanisms.
  • Technological advancements now enable direct functional genetic studies in human cells and embryos.

Purpose of the Study:

  • To review recent advances in functional genetic studies of early human development.
  • To highlight how combined transcriptional analysis and genome engineering illuminate key developmental processes.
  • To discuss insights into zygotic genome activation, lineage specification, X-chromosome inactivation, and germ cell development.

Main Methods:

  • Single-cell sequencing technologies
  • Genome editing tools (e.g., CRISPR-Cas9)
  • Human embryonic stem cell models

Main Results:

  • Functional genetic studies in human cells and embryos are now feasible.
  • Combined transcriptional analysis and genome engineering provide novel insights.
  • Key processes like zygotic genome activation and lineage specification are better understood.

Conclusions:

  • Recent technological progress allows direct investigation of human embryonic genetics.
  • These studies are vital for advancing regenerative medicine and understanding developmental disorders.
  • Future research will continue to unravel the complexities of human embryogenesis.