1. A recessive gene is the main cause of: Huntington’s disease. Turner syndrome. Sickle…

1.    A recessive gene is the main cause of:
Huntington’s disease.
Turner syndrome.
Sickle cell.
Down’s syndrome.
2.    Which birthing technique is most effective in preventing mixing of the circulatory systems of a mother and child during childbirth?
The biofeedback method
A cesarean section
Natural childbirth
The Lamaze method