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the branch of biology dealing with the phenomena of heredity and the laws governing it.
biochemical genetics the study of the fundamental relationships between genes, protein, and metabolism. This involves the study of the cause of many specific heritable diseases. These include those resulting from the improper synthesis of hemoglobins and protein, such as sickle cell disease and thalassemia, both of which are hereditary anemias; some 200 inborn errors of metabolism, such as phenylketonuria and galactosemia, in which lack or alteration of a specific enzyme prohibits proper metabolism of carbohydrates, proteins, or fats and thus produces pathologic symptoms; and genetically determined variations in response to certain drugs, for example, isoniazid.
clinical genetics the study of the causes and inheritance of genetic disorders. In addition to the diseases mentioned under biochemical genetics, other aspects of clinical genetics include the study of chromosomal aberrations, such as those that cause mental retardation and down syndrome, and immunogenetics, or the genetic aspects of the immune response and the transmission of genetic factors from generation to generation.

Many pediatric hospital admissions involve genetic disorders. In obstetrics and neonatal medicine, prenatal diagnosis of genetic defects and improvement of pre- and perinatal conditions are a major concern. In adults, such diseases as breast cancer, coronary artery disease, hypertension, and diabetes mellitus have all been found to have predisposing genetic components that are relevant to identification of risk factors and early diagnosis.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


1. The branch of science concerned with the means and consequences of transmission and generation of the components of biologic inheritance.
2. The genetic features and constitution of any single organism or set of organisms.
[G. genesis, origin or production]
Farlex Partner Medical Dictionary © Farlex 2012


1. (used with a sing. verb) The branch of biology that deals with heredity, especially the mechanisms of hereditary transmission and the variation of inherited characteristics among similar or related organisms.
2. (used with a pl. verb) The genetic constitution of an individual, group, or class.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.


Genetics The study of the patterns of inheritance of specific traits, and how qualities or traits are transmitted from parents to offspring. See Behavioral genetics, Cancer genetics, Classic cytogenetics, Heredity, Inheritance, Medical genetics, Molecular cytogenetics, Pharmacogenetics, Reverse genetics, Trait, Variance.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.


1. The branch of science concerned with the means and consequences of transmission and generation of the components of biologic inheritance.
2. The genetic features and constitution of any single organism or set of organisms.
[G. genesis, origin or production]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


The branch of biology concerned with the structure, location, abnormalities and effects of the GENES. Medical genetics is mainly concerned with the expression of abnormal genes or gene combinations in the production of disease. Knowledge of such matters allows useful GENETIC COUNSELLING. William Bateson, (1861–1926) was the English physiologist whose studies and publications led to his being known as the ‘father of genetics’. Curiously, Bateson persistently opposed the chromosome theory of heredity.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005


the science that investigates patterns of inheritance between generations, together with how genes express themselves within the lifetime of individual organisms.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005


The study of hereditary traits passed on through the genes.
Mentioned in: Gene Therapy
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.


1. Branch of science concerned with means and consequences of transmission and generation of components of biologic inheritance.
2. Genetic features and constitution of any single organism or set of organisms.
[G. genesis, origin or production]
Medical Dictionary for the Dental Professions © Farlex 2012

Patient discussion about genetics

Q. Are there genetic factors involving allergies? My entire family suffers from different allergies. It is clear that there is a connection, is that true?

A. The risk of allergic sensitization and the development of allergies varies with age, with young children most at risk. It is known that there is a strong genetic relation and allergies are usually common among family members. Ethnicity may play a role in some allergies, however racial factors have been difficult to separate from environmental influences and changes due to migration.

Q. Is celiac genetic? I have one son with celiac disease from my first marriage and me second wife is now pregnant,I was wondering what are the chances for this soon to be born daughter of mine to have celiac as well- if I maybe carry the genetic flaw and is there a way to find out?

A. Celiac disease is a very common illness (about 1 in a 100 people suffer from it in different levels), and it is known to have a strong genetic connection. However, there is not one specific mutation that you can get genetic testing to see if you are carrying it. Your soon to be born daughter will have a higher chance than the regular population to suffer from the disease, but it does not necessarily mean she will.

Q. is Bipolar genetic?

A. Bipolar disorder has a very strong genetic background: The approximate lifetime risk of this disease in relatives of a bipolar patient is 40 to 70 percent for a monozygotic (identical) twin and 5 to 10 percent for a first degree relative, compared with 0.5 to 1.5 percent for an unrelated person.

More discussions about genetics
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References in periodicals archive ?
Well, most of these genetic lines were intended for secret grows; not to be grown at an industrial scale.
The worldwide human genetics market has been propelled by the growing number of patients with growing healthcare outlay and genetic ailments by key economies across the world.
Each molecule of the plant can create different and varied effects in individuals, based on the genetics of the strain.
In addition, Seattle Genetics expects to grant the underwriters of the offering a 30-day option to purchase up to an additional 900,000 shares of its common stock solely to cover overallotments at the public offering price, less the underwriting discounts and commissions.
"We are excited to welcome Bill to Cancer Genetics as we execute on our plans to transform the business to accelerate the path to profitability by improving operational efficiency, expanding the service offerings and growing our pipeline in our Biopharma and Discovery businesses in the near term," said John Roberts, ceo of Cancer Genetics in a statement.
Cancer Genetics will be the surviving entity and expects to remain listed on the Nasdaq Stock Market.
"Genetics: A Handbook for Lawyers" includes: Molecular Biology; History of Genetics; Cutting Edge Technology and Evidentiary Value Role of Genetics in Health; Forensic Collection and Analysis of DNA; Paternity Testing; Consumer Genetics; Computational Tools to Validate Data; Ethical Issues; Discrimination; Malpractice; Intellectual Property; and Explaining Genetic Issues to a Jury.
Under the terms of the definitive merger agreement, Seattle Genetics will commence a tender offer on or about February 8, 2018 to acquire all of the outstanding shares of common stock of Cascadian Therapeutics for USD 10 per share in cash.
We provide a theoretical reference, based on competence, to support the outline of programs of education and training in Health, contributing to including Genetics in the SUS.
In Genetics, Crime and Justice, Wilson raises a critical question regarding a civilized society's priority, that is, is protection from crime more important than an individual's right to be protected from unwanted invasion into his/her genetic makeup?
GENETICS from the Genetic Science Learning Center provides high-quality, interactive information about genetics as well as the foundational science related to genetics topics.

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