(April 2014) In law and government, de jure (/deÉª ËdÊÊrÉª/; Latin: de iure, in law) describes practices that are legally recognized by official laws. In contrast, de facto (in fact or in practice) describes situations that are generally known to exist in reality, even if not legally authorized.
Only a portion of them are chromosome abnormalities. Single gene disorders are conditions that are caused by a change in a single gene. Because there are thousands of genes, there are thousands of single gene disorders. This group of disorders cannot be diagnosed by a karyotype.
Since the sex chromosomes (XX or XY) are identified during the chromosome analysis, this test will also, as a byproduct, definitely determine the sex of a fetus. Some chromosome alterations are too small or subtle to detect with karyotyping.his is the absence of one of the chromosomes. An example of monosomy is Turner syndrome (a female with a single X chromosome â X instead of XX). Most other monosomies are not compatible with life.