Question

question 71 which chromosomal abnormality causes patau syndrome? a. monosomy x b. trisomy 18 c. trisomy 13 d. trisomy 21

Explanation:

Patau syndrome is caused by the presence of an extra copy of chromosome 13, which is known as trisomy 13. Monosomy X causes Turner syndrome, trisomy 18 causes Edwards syndrome, and trisomy 21 causes Down syndrome.

Answer:

C. Trisomy 13