The loss of a chromosomal segment is due to

Which of the following disorders does not result in a sterile individual?

- Physical, psychomotor and mental development is retarded.
- Palm is broad with characteristic palm crease, these symptoms show....

Describe chromosomal disorders and provide their examples.

$A$ pregnant woman who has undergone an amniocentesis test finds an extra $Barr$ body in her embryo. Which syndrome is likely to be associated with the embryo?

Which event in the chromosomal structure leads to the formation of a syndrome?