Respuesta :
Answer:
Trisomy 21.
Explanation:
Trisomy 21 can be diagnosed by karyotyping, which is a process by which the chromosomes in a person's body can be photographed and checked for irregularities or abnormalities.
Hope this helps :)
Answer:
Trisomy 21
Explanation:
Not #2, #3 or #4: these conditions are caused by mutations and not chromosomal abnormalities that are visible in a karyogram. The answer is #1 because trisomy 21 is a chromosomal abnormality that is visible in a karyogram.