duplication

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duplication

 [doo-plĭ-ka´shun]
1. a doubling; in genetics, the presence of an extra segment of chromosome. See also repeat.
2. the process of copying a radiograph.
3. abnormal doubling of a body part.

du·pli·ca·tion

(dū'pli-kā'shŭn),
1. A doubling.
See also: reduplication.
2. Inclusion of two copies of the same genetic material in a genome; an important step in diversification of genomes, as in the evolution of the (nonallelic) hemoglobin chains from a common ancestor. Synonym(s): gene duplication
[L. duplicatio, a doubling, fr. duplico, to double]

duplication

/du·pli·ca·tion/ (doo-plĭ-ka´shun)
1. the act or process of doubling, or the state of being doubled.
2. in genetics, the presence in the genome of additional genetic material (a chromosome or segment thereof, a gene or part thereof).
3. abnormal doubling of a part.

duplication

(do͞o′plĭ-kā′shən, dyo͞o′-)
n.
1.
a. The act or procedure of duplicating.
b. The condition of being duplicated.
2. Genetics
a. The occurrence of a repeated section of genetic material in a chromosome.
b. The formation of such a duplication.

du·pli·ca·tion

(dū'pli-kā'shŭn)
1. A doubling.
See also: reduplication
2. genetics Inclusion of two copies of the same genetic material in a genome; an important step in diversification of genomes, as in the evolution of the (nonallelic) hemoglobin chains from a common ancestor.
[L. duplicatio, a doubling, fr. duplico, to double]

du·pli·ca·tion

(dū'pli-kā'shŭn)
1. A doubling.
[L. duplicatio, a doubling, fr. duplico, to double]

duplication,

n the procedure of accurately reproducing a cast or other object.
duplication impression,
n See duplication.

duplication

a doubling; in genetics, the presence of an extra segment of chromosome.

Patient discussion about duplication

Q. what is the cause for double vision

A. Double vision, or diplopia, as it's called, may be due to many conditions, including disorders of the muscles of the eye (extra-ocular muscles) and the nerves controlling them, disorders of the eye ball (enlarged eyeball as in Graves' ), and sometimes disorders of vision.

Diplopia may manifest important conditions, so consulting a doctor (e.g. neurologist or ophthalmologist) may be wise.

You may read more here:
www.nlm.nih.gov/medlineplus/ency/article/003029.htm

Q. I have fibromyalgia and am having terrible vision problems...double, blurred, feel off blance.Is this common?

A. Blurry vision is not a usual symptom in fibromyalgia. If you are experiencing this on a permenant basis you should see a doctor- either a neurologist or an ophthalmologist to rule out other vision conditions that might be causing this.

More discussions about duplication
References in periodicals archive ?
Vertebrate vitellogenin gene duplication in relation to the "3R hypothesis": correlation to the pelagic egg and the oceanic radiation of teleosts.
A review of the distribution of CYP2D6 genotype among countries indicates a south/north gradient of CYP2D6 gene duplications, which indicate UM status.
But sometimes existing gene duplications can cause the chromosomes to misalign, and that misalignment leads to further duplications or deletions.
The discovery of this gene indicates that the gene duplication event that gave rise to [CB.
Since gene duplication is frequently accompanied by divergence of function, identifying the duplicate lineage (or orthology group) of a particular gene can greatly improve predictions of the gene's function.
The long-term goal of his research is to understand the evolution, pathology, and mechanisms of recent gene duplication and DNA transposition within the human genome.
Glutathione S-transferases, Common carp genome, Gene family, Gene duplication.
This means that the early consequences of gene duplication, and the early divergence of duplicated genes, have not been studied on a genomic scale.
The presence of a unique [beta]-actin insertion site (with its tell-tale target site duplications) establishes that one original insertion event was followed by a series of gene duplication events.
Articles discuss human evolution, gene duplication, DNA strand break repair associated with human genetic diseases, dyslexia and genetic factors, applications of RNA interference in mammalian and human systems, and the pathophysiology of fragile-X syndrome.
We included a sample in this comparison study if (a) the DNA sample could be anonymously genotyped for CYP2D6 * 3, * 4, * 5, * 6, * 7, * 8, and gene duplication by Pyrosequencing (Pyrosequencing AB, a subsidiary of Biotage AB) as previously described (18-19), and (b) an aliquot of the original human DNA sample could be sent to Dartmouth without depleting the entire sample.