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Related Concept Videos

Next-generation Sequencing03:00

Next-generation Sequencing

The first human genome sequencing project cost $2.7 billion and was declared complete in 2003, after 15 years of international cooperation and collaboration between several research teams and funding agencies. Today, with the advent of next-generation sequencing technologies, the cost and time of sequencing a human genome have dropped over 100 fold.
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features.
Evolution of Microbial Genome01:08

Evolution of Microbial Genome

Microbial genome evolution is a highly dynamic process shaped by continual gene gain and loss across species and strains. This genomic flexibility allows microorganisms to adapt rapidly to environmental pressures and interactions with other organisms. Central to understanding this diversity is the distinction between the core and pan genomes.The core genome comprises the genes shared by all sampled strains of a species, representing essential functions needed for fundamental cellular processes.
Human Genetics01:28

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...
Evolutionary Relationships through Genome Comparisons02:54

Evolutionary Relationships through Genome Comparisons

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...
Animal Mitochondrial Genetics02:59

Animal Mitochondrial Genetics

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...
Genomics02:02

Genomics

Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...

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Related Experiment Video

Updated: May 21, 2026

Primer Extension Capture: Targeted Sequence Retrieval from Heavily Degraded DNA Sources
15:28

Primer Extension Capture: Targeted Sequence Retrieval from Heavily Degraded DNA Sources

Published on: September 3, 2009

[Progresses on Neandertal genomics].

Cai-Li Bi1, Guang-Yan Guo, Xiao Zhang

  • 1College of Life Science, Hebei Normal University, Shijiazhuang 050016, China. beicaili@sina.com

Yi Chuan = Hereditas
|June 16, 2012
PubMed
Summary
This summary is machine-generated.

Neandertals, our closest relatives, may have contributed DNA to modern humans, challenging previous origin theories. This genetic exchange offers insights into human evolution and our relationship with archaic hominids.

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Area of Science:

  • Paleoanthropology
  • Evolutionary Biology
  • Genetics

Context:

  • Neandertals are the closest extinct human relatives.
  • Fossil records indicate Neandertals are rich in fossils.
  • Debate exists on Neandertal DNA exchange with modern humans.

Purpose:

  • Reviewing advances in Neandertal mitochondrial and nuclear genomes.
  • Investigating potential Neandertal genetic contributions to modern humans.
  • Re-evaluating modern human origins.

Summary:

  • Recent genomic studies suggest some Neandertal DNA exists in modern humans.
  • This finding prompts a reconsideration of the origins of modern humans.
  • Research on Neandertals provides valuable data for studying archaic hominids.

Impact:

  • Informs the study of archaic hominids.
  • Contributes to unraveling the mystery of modern human origins.
  • Enriches theoretical frameworks in evolutionary biology.