duplication

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Related to duplications: Genome duplication

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 ?
Imaging features of gastrointestinal tract duplications in infants and children: from oesophagus to rectum.
Bladder duplication is a rare congenital malformation of the urinary system, which was classified as complete or incomplete by Abrahamson in 1961 (3).
Duplication cysts have potential malignant transformation, and some cases in the literature reported adenocarcinoma development from the gastric duplication cyst; therefore, recommended treatment is total excision of the cyst (6).
Alimentary tract duplications in children: report of 26 years experience.
Furthermore, DNAH9A may undergo fragment insertion, loss, or repeat after DNAH9 duplication and cannot be transcribed alone (Fig.
6) Colonic duplication appears to be associated with a higher incidence of various congenital anomalies.
By these findings, Meckel's diverticulum was diagnosed and surgery was performed during which intestinal duplication was discovered [Figure 1]c.
The findings were consistent with a congenital duplication cyst arising from the lower third of the esophagus.
While the researchers make a compelling case that duplications and deletions play an important role in evolution, the team has provided little evidence that copy number variants really determine trait differences between groups, says Edward Hollox, a human geneticist at the University of Leicester in England.
Urethral duplication (UD) or double urethra is quite a rare anomaly with ill-defined aetiology.
Though rare, adenocarcinomas arising from small bowel duplications are known frequently to contain heterotopic gastric mucosa.
This has led to the suggestion of some different theories to explain the embryologic events that result in duplications.