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Karyotyping

Karyotyping

Describing the number and physical features of chromosomes can reveal abnormalities that underlie genetic diseases. This description is facilitated by special staining techniques that produce a particular banding pattern on each chromosome. State-of-the-art techniques make this approach even more powerful, enabling the detection of individual genes that cause disease.A Simple Chromosome Staining Technique Provides Valuable Scientific InsightSome genetic diseases can be detected by looking at...

Karyotyping

Karyotyping

Describing the number and physical features of chromosomes can reveal abnormalities that underlie genetic diseases. This description is facilitated by special staining techniques that produce a particular banding pattern on each chromosome. State-of-the-art techniques make this approach even more powerful, enabling the detection of individual genes that cause disease.A Simple Chromosome Staining Technique Provides Valuable Scientific InsightSome genetic diseases can be detected by looking at...

Polytene Chromosomes

Polytene Chromosomes

Polytene chromosomes are giant interphase chromosomes with several DNA strands placed side by side. They were discovered in the year 1881 by Balbiani in salivary glands, intestine, muscles, malpighian tubules, and hypoderm of larvae Chironomus plumosus. Hence, these are also called "Salivary gland chromosomes." These are found in insects of the order Diptera and Collembola; in certain organs of mammals; and synergids, antipodes of flowering plants. Polytene chromosomes are also regularly...

Pedigree Analysis

Pedigree Analysis

Chromosomal Theory of Inheritance

Chromosomal Theory of Inheritance

In 1866, Gregor Mendel published the results of his pea plant breeding experiments, providing evidence for predictable patterns in the inheritance of physical characteristics. The significance of his findings was not immediately recognized. In fact, the existence of genes was unknown at the time. Mendel referred to hereditary units as “factors.”

Next-generation Sequencing

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.

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Related Experiment Video

Updated: Jul 5, 2026

Spectral Karyotyping to Study Chromosome Abnormalities in Humans and Mice with Polycystic Kidney Disease

Spectral Karyotyping to Study Chromosome Abnormalities in Humans and Mice with Polycystic Kidney Disease

Published on: February 3, 2012

Veterinary cytogenetics: past and perspective.

P K Basrur¹, G Stranzinger

¹Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada. pbasrur@uoguelph.ca

Cytogenetic and Genome Research

|May 10, 2008

Summary

Veterinary cytogenetics, building on human and model organism research, now uses advanced molecular tools for animal health and reproduction. Future applications in animal breeding and diagnostics show great promise.

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Last Updated: Jul 5, 2026

Spectral Karyotyping to Study Chromosome Abnormalities in Humans and Mice with Polycystic Kidney Disease

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Published on: February 3, 2012

Chromosome Preparation From Cultured Cells

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FISH for Pre-implantation Genetic Diagnosis

FISH for Pre-implantation Genetic Diagnosis

Published on: February 23, 2011

Area of Science:

Cytogenetics, encompassing the study of chromosomes and heredity.
Molecular cytogenetics, utilizing advanced techniques for research and diagnostics.

Background:

Cytogenetics originated in the late 1800s, with chromosomes identified as the basis of inheritance.
Human cytogenetics advanced significantly with improved techniques, benefiting veterinary applications.
Veterinary cytogenetics leverages knowledge from human, plant, insect, and mammal studies.

Observation:

Clinical applications in veterinary medicine are less exploited due to cost considerations.
Reproductive efficiency in animals is a key area where veterinary cytogenetics holds significant potential.
Sophisticated cytogenetic tools are available for research and clinical applications.

Findings:

The scope has expanded from chromosome structure/number to molecular cytogenetics.
Techniques include comparative genomic hybridization arrays and SNP array-based karyotyping.
Advanced tools enable RNA expression analysis, chromatin immunoprecipitation, and custom microarrays.

Implications:

Veterinary cytogenetics can address inherited aberrations impacting animal reproductive efficiency.
Sophisticated tools facilitate tracking and tackling genetic issues in animal breeding.
Continued technical refinements suggest substantial future advancements in the field.