Question 1

dwarfism is caused by the mutation of which chromosome?

Accepted Answer

Many types: There are many different types, for example, the most common type is achondroplasia which is on the short arm of chromosome 4.

Question 2

what is the difference between gigantism or dwarfism?

Accepted Answer

Gigantism/ dwarfishm: Gigantism = abnormal increased growth due to presence of too much growth hormone in childhood. Dwarfism involves short stature. (4 feet 10 inches or less)

Question 3

what is done to diagnose dwarfism?

Accepted Answer

Prenatal ultrasound.: Screening with prenatal ultrasound is one way to screen for certain types of dwarfism that could potentially be lethal. Prenatal screening and diagnosis are primarily performed in the second trimester, but late first trimester fetal structural assessment is becoming more common with advances in transvaginal ultrasound imaging and the widespread use of first trimester screening for down syndrome.

Question 4

how many cases of dwarfism are found in the world?

Accepted Answer

Dwarfism: Dwarfism could be any of a number of conditions that limit growth, but most people refer to achondroplasia when the describe dwarfism.

Achondroplasia takes place in one birth per 25, 000 births.

Question 5

what is the definition or description of: dwarfism?

Accepted Answer

Dwarfism: It occurs when an individual person or animal is short in stature resulting from a medical condition caused by abnormal (slow or delayed) growth. In humans, dwarfism is sometimes defined as an adult height of less than 4 feet 10 inches (58 inches or 147.32cm).

Question 6

what exactly is achondroplasia dwarfism?

Accepted Answer

Achondroplasia: ... is a form of short-limbed dwarfism. It's a genetic condition that affects the long bones. Although it is heritable, most children with the condition (up to 80%) have parents with normal stature and have achondroplasia as a result of new ("de novo") genetic mutation. The incidence is about 1 per 26,000 live births. Intelligence and life span are normal.

Question 7

is osteochondrodysplasia the cause of dwarfism?

Accepted Answer

Yes it could: Osteochondrodysplasias are a group of hereditary disorders in which bone or cartilage grows abnormally, so that the skeleton develops abnormally. Many types of osteochondrodysplasia cause dwarfism. Achondroplasia is the most common of the many types of short-limbed dwarfism.

Question 8

does primordial dwarfism affect the mental capabilities?

Accepted Answer

Many diagnoses: Primordial dwarfism means that medicine has not found a cause for such, so it is a basket category that might encompass many different conditions that will be further categorized as our genomic knowlege improves.  Most children with primordial dwarfism do have low IQ , but some postulate thatbthis might be related to emotional retardation for not being considered as "full grown".

Question 9

how many cases of primordial dwarfism are found worldwide?

Accepted Answer

About 200: Primordial means we do not know the specific cause, about 200 sub-types have been described in medical literature.  With the genome project many of this causes will gradually come to light.

Question 10

which limitations do you have when you have achondroplasia(dwarfism)?

Accepted Answer

Achondroplasia: Beyond the obvious limitations of small stature (being short) achondroplasia can lead to severe respiratory problems that can lead to death, also joint and spine problems including twisting of the spine.

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Dwarfism difference mutation

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Dwarfism is caused by the mutation of which chromosome?

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What is the definition or description of: dwarfism?

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What exactly is achondroplasia dwarfism?

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Is osteochondrodysplasia the cause of dwarfism?

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How many cases of primordial dwarfism are found worldwide?

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Which limitations do you have when you have achondroplasia(dwarfism)?

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