What is translocation abnormality?
Translocation Translocation is a type of chromosomal abnormality in which a chromosome breaks and a portion of it reattaches to a different chromosome. Chromosomal translocations can be detected by analyzing karyotypes of the affected cells.
What is Intrachromosomal translocation?
Intrachromosomal translocations involve the movement of a chromosomal segment from one location in the chromosome to another. Reciprocal translocations occur when chromosomal segments are exchanged between two non- homologous chromosomes and is the most typical type of translocation.
How is translocation calculated?
There are multiple techniques to detect defining chromosomal translocations and other abnormalities, including conventional cytogenetic analysis, fluorescence in situ hybridization (FISH), spectral karyotyping (SKY), DNA microarray analysis, polymerase chain reaction (PCR) analysis, and immunohistochemical (IHC) …
Is translocation fatal?
Translocations, inversions, and deletions produce partial sterility by generating unbalanced meiotic products that may themselves die or that may cause zygotes to die.
How many carriers of Robertsonian translocations are there?
Data on the carriers and the results of their prenatal analyses were retrieved as well as data on their previous pregnancies. We identified 28 female and 20 male carriers of Robertsonian translocations and results on 79 prenatal samples were obtained.
Is there a translocation of chromosome 13 to another chromosome?
A Robertsonian translocation involving chromosome 13 is when chromosome 13 is attached to another acrocentric chromosome (usually chromosome 14, 15, 21, or 22). [1]
Is it possible to have a healthy baby after translocation?
More than half of the pregnancies led to the birth of a healthy child, but prediction of which couples will be successful in obtaining a pregnancy with or without assisted reproductive technologies and/or embryo selection remains difficult. The reason for ascertainment of the translocation should be taken into account when counseling these couples.