Question

In humans, trisomy 13 is also known as ______, while trisomy 18 is called ______.

Multiple choice question.
Lejeune syndrome ; Marfan syndrome
Marfan syndrome ; Lejeune syndrome
Edwards syndrome ; Patau syndrome
Patau syndrome ; Edwards syndrome

Answer 1

Trisomy 13 is known as Patau syndrome and trisomy 18 as Edwards syndrome, which are chromosomal disorders due to an extra chromosome resulting in severe developmental issues.

Step-by-step explanation:

In humans, trisomy 13 is also known as Patau syndrome, while trisomy 18 is called Edwards syndrome. Therefore, the correct answer is 'Patau syndrome; Edwards syndrome'. Both Patau syndrome and Edwards syndrome are types of chromosomal disorders called aneuploidies, where there is an abnormal number of chromosomes in a cell. Patau syndrome is due to an extra copy of chromosome 13, and Edwards syndrome is due to an extra copy of chromosome 18. These conditions lead to a wide range of health problems and developmental issues due to the disruption of the normal gene dosage, which is calibrated for two copies of each gene in euploid individuals.