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Related Concept Videos

Karyotyping01:17

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Lampbrush Chromosomes01:51

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In 1882, Flemming observed lampbrush chromosomes (LBC) in salamander eggs. Later in 1892, Rückert observed LBCs in shark egg cells and coined the term "lampbrush chromosomes" because they looked like brushes used to clean kerosene lamps.
LBCs are made up of two pairs of conjugating homologous chromatids. Each chromatid consists of alternatively positioned regions of condensed-inactive chromatin and loosely placed-active side loops, which can be contracted and extended. The loops...
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Within the human body, a complex and detailed system of trillions of cells works in unison to sustain life. Each cell houses a nucleus, which contains 46 chromosomes divided into 23 pairs. Chromosomes are highly coiled structures made of the genetic material DNA. These chromosomes are essential carriers of genetic information, with half inherited from the mother through her egg and the other half from the father's sperm, combining to create the unique genetic makeup of an individual.
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Chromosome Structure02:40

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A functional eukaryotic chromosome must contain three elements: a centromere, telomeres, and numerous origins of replication.
The centromere is a DNA sequence that links sister chromatids. This is also where kinetochores, protein complexes to which spindle microtubules attach, are constructed after the chromosome is replicated. The kinetochores allow the spindle microtubules to move the chromosomes within the cell during cell division.
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Related Experiment Video

Updated: Mar 24, 2026

Chromosome Preparation From Cultured Cells
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Chromosomes and clinical anatomy.

Robert James McKinlay Gardner1

  • 1Clinical Genetics Group, Department of Women's and Children's Health, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand.

Clinical Anatomy (New York, N.Y.)
|March 19, 2016
PubMed
Summary

Chromosome abnormalities offer insights into how normal anatomy evolves and abnormal anatomy develops. Geneticists and anatomists can collaborate to link genotype to phenotype, using new genetic tools and classical observation skills.

Area of Science:

  • Evolutionary biology
  • Human anatomy
  • Genetics

Background:

  • Chromosome abnormalities are key to understanding anatomical evolution and malformation.
  • The relationship between genetic makeup (genotype) and physical traits (phenotype) is a complex area of study.

Purpose of the Study:

  • To explore how chromosome abnormalities illuminate mechanisms of anatomical evolution and the origin of abnormal anatomy.
  • To highlight the collaborative potential between geneticists and anatomists in correlating genotype with phenotype.

Main Methods:

  • Utilizing advanced genetic methodologies for precise delineation of chromosome imbalances.
  • Applying classical observational and recording skills in anatomical studies.

Main Results:

Keywords:
anatomychromosomesmorphogenesis

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  • New genetic techniques allow for highly precise identification of chromosomal imbalances, down to the nucleotide level.
  • Traditional anatomical observation skills remain essential for accurate data collection and interpretation.

Conclusions:

  • The study underscores the importance of integrating advanced genetic analysis with fundamental anatomical observation.
  • Collaborative efforts between genetics and anatomy are crucial for advancing our understanding of normal and abnormal anatomical development.