Obstetrics & gynaecology

Severity of autism symptoms varies greatly among identical twins

Identical twins with autism spectrum disorder (ASD) often experience large differences in symptom severity even though they share the same DNA, according to an analysis funded by the National Institutes of Health. The findings ...

Genetics

CRISPR provides hope of sickle cell cure

Thanks to the 'cut and paste' gene editing technique CRISPR, scientists are homing in on a cure for sickle cell disease—a genetic blood disorder—while other research is looking at how to expand the potential of CRISPR-based ...

Diseases, Conditions, Syndromes

Calculating genetic links between diseases, without the genetic data

Physicians use standard disease classifications based on symptoms or location in the body to help make diagnoses. These classifications, called nosologies, can help doctors understand which diseases are closely related, and ...

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Genetic disorder

A genetic disorder is an illness caused by abnormalities in genes or chromosomes. While some diseases, such as cancer, are due in part to a genetic disorders, they can also be caused by environmental factors. Most disorders are quite rare and affect one person in every several thousands or millions. Some types of recessive gene disorders confer an advantage in the heterozygous state in certain environments. A haploid cell has only one set of chromosomes. A diploid cell has two sets of chromosomes. In human, the somatic cells are diploid, and the gametes are haploid.

Genetic diseases are typically diagnosed and treated by geneticists. Genetic counselors assist the physicians and directly counsel patients.[citation needed]

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