Amniocentesis is used for:
chromosomal pattern-based testing for foetal sex and diseases
determining eye colour
determining blood type
predicting height.
Based on the chromosomal pattern in the amniotic fluid around the growing embryo, amniocentesis is a medical treatment used to identify the gender of the foetus and detect specific genetic diseases.
Amniocentesis is not used to identify a person's blood type, determine their eye colour, or forecast their height.
Option 1 is the correct answer.