Which of the following is NOT true about the human karyotype?
a) It can be made from placental tissue.
b) It reveals the gender of the individual.
c) It can be made from cells gathered by amniocentesis.
d) It can reveal whether non-disjunction occurred in an egg or sperm.
e) It can be used to diagnose genetic diseases like cystic fibrosis.
Answer: e) It can be used to diagnose genetic diseases like cystic fibrosis