Karyotypes can be studied to determine an organism’s chromosomal makeup and to detect genetic defects. Patau syndrome occurs whe
n an individual has an extra copy of chromosome 13, giving them three copies. Symptoms of Patau syndrome include extra digits, seizures, and cleft palate. Which word would geneticists use to describe the cause of Patau syndrome?
-Trisomy is a chromosomal disorder characterized by an additional chromosome, so the person has 47 instead of 46. An example of trisomy is the Patau syndrome.
-Patau syndrome or trisomy 13 is a type of chromosome disorder characterized by having 3 copies of chromosome 13 in cells of the body, instead of the usual 2 copies. Trisomy 13 cases are caused by random events during the formation of eggs or sperm in healthy parents (meiosis).
Sexually reproducing organisms are diploid (having two sets of chromosomes, one from each parent). In humans, only their egg and sperm cells are haploid.
