Yes, it takes place in chromosome 4.
what is the answer to this question
There are many different chromosomal abnormalities in a RETT patient it includes ring chromosome(especially X chromosome),dicentric,chromosomal and chromatid breaks etc...
A abnormality in the size, shape, or number of chromosomes.
Trisomy an abnormality in chromosomal development.
By what is called as amniocentesis, you can diagnose the chromosomal abnormality of the unborn baby. You do this procedure under cover of ultrasonography. The fetal cells will give you complete picture of the chromosomal abnormality of the unborn child.
Trisomy
chromosomal abnormality of the developing fetus.
no, it is a chromosomal abnormality, not a contagious disease.
Achondroplasia, or Dwarfism, is a genetic disorder, both handed down and mutagenic. Quoted from Wikipedia: "Achondroplasia is a result of an autosomal dominant mutation in the fibroplast growth receptor gene 3 (FGFR3), which causes an abnormality of catilage formation."
substances or chromosomal abnormalities
yes it is. It affects chromosome 11.
Trisomy 21, Down's syndrome