What are the symptoms of Robertsonian translocation?
Symptoms of a Robertsonian translocation In most cases , there are no symptoms or visible signs of a Robertsonian translocation. Depending on where in your DNA the translocation occurs, it’s very likely that you won’t experience any side effects of your DNA chain being atypical.
Is Robertsonian translocation rare?
Robertsonian translocations are very rare structural chromosomal abnormalities — with only about one in 900 people having them. Translocations like this happen on their own and are out of our medical control.
What is Robertsonian translocation give example?
A Robertsonian translocation results when the long arms of two acrocentric chromosomes fuse at the centromere and the two short arms are lost. If, for example, the long arms of chromosomes 13 and 14 fuse, no significant genetic material is lost—and the person is completely normal in spite of the translocation.
What syndrome does translocation cause?
Translocation Down syndrome refers to the type of Down syndrome that is caused by rearranged chromosome material. In this case, there are three # 21 chromosomes, just like there are in trisomy 21, but one of the 21 chromosomes is attached to another chromosome, instead of being separate.
How is Robertsonian translocation diagnosed?
Robertsonian translocation type trisomy 13 can be detected by prenatal diagnosis technology, which inclue molecular cytogenetics and traditional karyotype analysis. Different diagnosis technologies have to be clearly distinguished and correctly applied.
How do you know if you have translocation?
Your geneticist will offer to test other members of your family to find out whether your translocation is a new one or a family one. A small blood sample is needed for the test. Testing both your parents may be enough but if that is not possible, other family members may also be invited for testing.
How does Robertsonian translocation affect the body?
In Robertsonian translocation, the two long arms of two separate acrocentric chromosomes fuse to create one chromosome. The short arms are usually lost. This is sometimes called centric-fusion translocation.
When do Robertsonian translocations occur?
Robertsonian translocations occur between two acrocentric chromosomes, which are chromosomes in which the centromere is close to one end of the chromosome, resulting in a small (p for petit) length of genetic material beyond the centromere.
What is the life expectancy of Robertsonian translocation?
Robertsonian translocation does not always cause health problems, and many people will never know they have it. They will usually live as long and healthy a life as their peers, providing there are no other health complications.
How common is Robertsonian translocation?
Robertsonian translocations, fusions between two acrocentric chromosomes, are the most common structural chromosomal rearrangements in humans and occur in approximately 1 in every 1000 newborns [1].
Is Robertsonian translocation bad?
A person with a Robertsonian translocation has an increased risk of miscarriage for each pregnancy and an increased risk of the baby being born with a disability.