Question

Abnormal neural crest cell migration leads to

A) Down syndrome
B) Turner syndrome
C) DiGeorge syndrome
D) Klinefelter syndrome

Answer 1

DiGeorge syndrome is caused by abnormal neural crest cell migration and involves a deletion on chromosome 22. Down syndrome, Turner syndrome, and Klinefelter syndrome are each associated with other specific chromosomal abnormalities and are not directly linked to neural crest cell migration.The correct answer is option C.

Step-by-step explanation:

Abnormal neural crest cell migration leads to C) DiGeorge syndrome. DiGeorge syndrome arises due to a deletion on chromosome 22 and involves issues with organs and tissues derived from the neural crest cells, including the heart, thymus, parathyroid glands, and parts of the face.

Each option given is associated with a different genetic or chromosomal condition. Down syndrome is characterized by an extra chromosome 21, or trisomy 21. Turner syndrome involves having only one X chromosome (monosomy X), affecting females. Klinefelter syndrome pertains to males with an extra X chromosome, resulting in an XXY genotype.The correct answer is option C.