During amniocentesis
A. a needle removes cells from the fetus.
B. a piece of the placenta is snipped off and examined for abnormal cells.
C. blood is removed from a woman's arm and fetal cells isolated and their chromosomes karyotyped.
D. fetal fibroblasts in amniotic fluid are cultured and a karyotype constructed.
Answer: D
You might also like to view...
The muscle that extends the forearm when doing push-ups is the
A) deltoid. B) pectorals. C) brachialis. D) triceps. E) biceps.
Answer the following statements true (T) or false (F)
1. Repolarization occurs just before contraction. 2. The QRS complex usually hides the repolarization of the atria. 3. A patient with a very unusual P wave is more seriously ill than a patient with a very unusual QRS complex. 4. Veins always carry blood back to the heart. 5. Veins always carry oxygen-poor blood.
The epidural space contains
A) cerebrospinal fluid. B) lymph. C) blood. D) connective tissue and blood vessels. E) denticulate ligaments.
The rhythmic contractions and relaxations of the inspiratory muscles are dependent upon spontaneous depolarizations of the diaphragm
Indicate whether the statement is true or false.