Which Type of Cell Could Not Be Used for Karyotyping

Question

Which type of cell could not be used for karyotyping?
A) red blood cell
B) white blood cell
C) fibroblast
D) skin cell
E) fetal

Accepted Answer

Red blood cells lack a nucleus and therefore do not contain DNA. Karyotyping involves analyzing the number and structure of chromosomes within a cell's nucleus. Without a nucleus, a red blood cell cannot be karyotyped.