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Related Concept Videos

Pleiotropy01:33

Pleiotropy

Pleiotropy is the phenomenon in which a single gene impacts multiple, seemingly unrelated phenotypic traits. For example, defects in the SOX10 gene cause Waardenburg Syndrome Type 4, or WS4, which can cause defects in pigmentation, hearing impairments, and an absence of intestinal contractions necessary for elimination. This diversity of phenotypes results from the expression pattern of SOX10 in early embryonic and fetal development. SOX10 is found in neural crest cells that form melanocytes,...
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Sex-linked Disorders

Like autosomes, sex chromosomes contain a variety of genes necessary for normal body function. When a mutation in one of these genes results in biological deficits, the disorder is considered sex-linked.
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...
Translation01:31

Translation

Lesson: Translation
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of Life
Translation01:31

Translation

Lesson: Translation
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Translation Produces the Building Blocks of Life
Wald-Wolfowitz Runs Test II01:17

Wald-Wolfowitz Runs Test II

The Wald-Wolfowitz runs test, commonly referred to as the runs test, is a nonparametric test used to assess the randomness of ordered data. The test evaluates the number of runs, which are consecutive sequences of similar elements within the data. If the number of runs is significantly higher or lower than expected, the data is considered non-random, indicating a detectable pattern or structure.
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Related Experiment Video

Updated: Jul 2, 2026

A Robust Polymerase Chain Reaction-based Assay for Quantifying Cytosine-guanine-guanine Trinucleotide Repeats in Fragile X Mental Retardation-1 Gene
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A Robust Polymerase Chain Reaction-based Assay for Quantifying Cytosine-guanine-guanine Trinucleotide Repeats in Fragile X Mental Retardation-1 Gene

Published on: September 16, 2019

Wolfram syndrome.

V Viswanathan1, S Medempudi, M Kadiri

  • 1M.V. Hospital for Diabetes and Diabetes Research Centre, Chennai.

The Journal of the Association of Physicians of India
|August 14, 2008
PubMed
Summary
This summary is machine-generated.

Wolfram syndrome is a rare genetic disorder causing early-onset diabetes and vision loss. Early diagnosis and treatment can improve survival and quality of life for affected individuals.

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Area of Science:

  • Genetics
  • Neurology
  • Endocrinology

Background:

  • Wolfram syndrome is a rare, inherited neurodegenerative disorder.
  • Characterized by early-onset diabetes insipidus and optic atrophy.
  • Associated symptoms include deafness, urinary issues, and neurological deficits.

Observation:

  • Patients often develop additional symptoms including diabetes insipidus, deafness, urinary tract issues, and neurological deficits.
  • A significant mortality rate (60%) by age 35 is associated with Wolfram syndrome, primarily due to respiratory failure from brain stem atrophy.

Findings:

  • The underlying mechanisms of neurodegeneration in Wolfram syndrome are not currently reversible.
  • Early identification of Wolfram syndrome is crucial for patient management.

Implications:

  • While a cure is unavailable, prompt diagnosis and appropriate hormonal replacement therapy can enhance patient quality of life.
  • Improved management strategies may increase survival rates for individuals diagnosed with Wolfram syndrome.