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1. pertaining to reproduction or to birth or origin.
2. inherited.
genetic code the arrangement of nucleotides in the polynucleotide chain of a chromosome; it governs the transmission of genetic information to proteins, i.e., determines the sequence of amino acids in the polypeptide chain making up each protein synthesized by the cell. Genetic information is coded in DNA by means of four bases: two purines (adenine and guanine) and two pyrimidines (thymine and cystosine). Each adjacent sequence of three bases (a codon) determines the insertion of a specific amino acid. In RNA, uracil replaces thymine.
genetic map
1. the location of mutations along the length of a chromosome, as determined by recombination experiments. The unit of length is the centimorgan (cM), one crossover per meiosis.
2. the sequence of base pairs along the DNA of a chromosome, a technique being applied to humans.
A gene map of Chromosome 18. From Copstead, 1996.
genetic marker a gene having alleles that are all expressed in the phenotype, that is, they are codominant, and which can be used to study inheritance. The various blood group systems and serum or red blood cell proteins easily detected by electrophoresis or immunodiffusion are commonly used markers.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


Pertaining to genetics; genetical.
Farlex Partner Medical Dictionary © Farlex 2012


(jə-nĕt′ĭk) also


a. Of or relating to genetics or genes.
b. Affecting or determined by genes: genetic diseases.

ge·net′i·cal·ly adv.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.


adjective Referring to genes; inherited.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.


Pertaining to genetics; genetical.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


of or relating to genes.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005


The term refers to genes, the basic units of biological heredity, which are contained on the chromosomes, and contain chemical instructions which direct the development and functioning of an individual.
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.

Patient discussion about genetic

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 genetic
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References in periodicals archive ?
Significant positive correlations were found between birth litter and social early-life environmental effect on ADG (0.43 [+ or -] 0.11), which differed from the neutral genetic correlation between DBV and SBV for ADG (0.03 [+ or -] 0.11; Table 3).
The objective was to estimate expected genetic gain when clones resistant to attack by Hypsipyla grandella were selected by calculating heritability and genetic correlations of diameter at breast height, tree height, volume and trunk taper index, number of attacks and clone recovery from damage by H.
There was a larger phenotypic negative correlation between the sterile spikelets and drought resistance index, and the genetic correlation between them was more significant, with larger environmental correlation.
The RFIFat showed strong and positive phenotypic (0.65, with an HPD of 0.48 at 0.94) and genetic correlations (0.75, with an HPD of 0.59 at 0.70) with the DMI as was reported by MAO et al.
The genetic parameters usually studied refer to genetic variances in its addictive and non-addictive components, to heritability coefficient (lato and stricto sensu), and tothe interactions between genetic and environmental effects and genetic correlations among these characters (Silveira, 2007).
Genetic correlations between growth traits in molluscs were first estimated for the European oyster Ostrea edulis by Toro and Newkirk (1990), who found a high genetic correlation between live weight and shell height at age.
Schutz and Bernard (1967) discuss the fact that the G x E interactions include both a difference in genotypic variances between sites, as well as the genetic correlation between the two sites.
Relationship between sire x year interactions and direct-maternal genetic correlation for weaning weight of Simmental cattle.
Our results in general do not support the prediction of a negative genetic correlation between induced and constitutive levels of secondary metabolite production.
For the present study, a structural equation model that yields an estimate of the genetic correlation between cognitive ability in males and females (Eaves et al., 1978; Neale & Martin, 1989) was fitted to FSIQ data from MZ and both same-sex and opposite-sex DZ twin pairs.