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What is the designation for the short arm of a chromosome?
Chromosome # + pso the short arm of Chromosome 11 is referred to as 11p
What allele and chromosome is huntington's disease found on?
The gene codes for a protein called huntingtin found on the short arm of chromosome 4.
Is celiac disease x-linked?
No, it is autosomal, with the likely gene mutation located on the short arm of chromosome 6.
How does a person inherit cystic fibrosis?
For a baby to be born with Cystic Fibrosis, both parents must be carriers of the faulty CF gene. Where both parents carry the faulty gene, each child has a one in four chance of having CF, a two in four chance of being a carrier and a one in four chance of not having any CF genes.
How is central core disease inherited?
Central core disease is inherited in an dominant manner, due to a mutation in one copy of the RYR1 (ryanodine receptor) gene on the long arm of chromosome 19.
What does a chromosome contain?
A chromosome is a part of DNA that consists of a long arm and a short arm connected at the center called the Centromere.
What does the q in chromosome 8q24 mean?
The 'q' refers to the long arm of the chromosome. A prototypical condensed chromosome has two arms: a short arm and a long arm. The 'p' stands for the French word 'petit' (which means small). The 'q' doesn't stand for anything in particular, but because 'q' comes after 'p' in the alphabet, it is used to refer to the long arm of the chromosome.
Sweat electrolytes test?
DefinitionSweat electrolytes is a test that measures the level of chloride in sweat. Although genetic tests have become important methods for determining whether a child has cystic fibrosis, the sweat chloride test remains important.Alternative NamesSweat test; Sweat chloride; Iontophoretic sweat testHow the test is performedIn the first part of the test, a colorless, odorless chemical that causes sweating is applied to a small area on an arm or leg. An electrode is then attached to the arm or leg, which allows the technician to apply a weak electrical current to the area to stimulate sweating.People may feel a tingling sensation in the area, or a feeling of warmth. This part of the procedure lasts approximately 5 minutes.The next part of the test involves cleaning the stimulated area and collecting the sweat on a piece of filter paper or gauze, or in a plastic coil. After 30 minutes, the collected sweat is sent to a hospital laboratory for analysis. The entire collection procedure takes about 1 hour.How to prepare for the testNo special preparation is necessary. Make sure the center where the test is being performed is a cystic fibrosis testing center.How the test will feelThough the test is not painful, some people describe a tingling sensation at the site of the electrode. In smaller children or infants, the sensation can cause irritability or discomfort.Why the test is performedSweat testing is the standard method for diagnosing cystic fibrosis. People with cystic fibrosis have higher amounts of sodium and chloride in their sweat, which the test can detect.Some people are referred for testing because of symptoms such as poor growth, many respiratory infections, or foul-smelling stools. In some states, newborn screening programs test for cystic fibrosis, and the sweat test is used to confirm these results.Normal ValuesA sweat chloride test result less than or equal to 39 mEq/L in an infant over 6 months old probably means cystic fibrosis is not present.A result between 40 - 59 mEq/L does not give a clear diagnosis. Further testing is needed.If the result is 60 mEq/L or greater, cystic fibrosis is present.Note: mEq/L = milliequivalent per literNormal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.What abnormal results meanAn abnormal test may indicate the presence of cystic fibrosis.ReferencesBoat TF, Acton JD. Cystic fibrosis. In: Kliegman RM, Behrman RE, Jenson HB, Stanton BF, eds. Nelson Textbook of Pediatrics.18th ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 400.Farrell PM, Rosenstein BJ, White TB, et al. Guidelines for diagnosis of cystic fibrosis in newborns through older adults: Cystic fibrosis consensus report. Journal of Pediatrics. Aug 2008;153(2).
What chromosome might be linked to one's susceptibility to leprosy infection?
In 2003, scientists conducting a genome scan of a large Vietnamese family with many cases of leprosy found that susceptibility to the disease was linked to region q25 on the long arm of chromosome 6.
What is a single arm of a chromosome called?
A single arm of a chromosome is called a chromatid. During cell division, each chromosome consists of two sister chromatids that are joined together at a region called the centromere.
How do you get rid of a cystic pimple under your arm?
put pimple lotion on it and lotion.
What aretwo chromatin arms on a chromsome?
The two chromatin arms on a chromosome are referred to as the short arm (p arm) and the long arm (q arm). These arms are designated based on their relative lengths after the chromosome is stained and visualized under a microscope.
