Neural tube defects (NTDs) are serious birth defects affecting the brain and spine. Adequate intake of certain nutrients during pregnancy is crucial for preventing these defects.
While other vitamins like Riboflavin (B2), Pyridoxine (B6), and Cyanocobalamin (B12) are essential for overall health, folic acid is specifically recognized for its preventive role against neural tube defects.
Therefore, supplementation with Folic acid during the antenatal period is recommended to prevent neural tube defects.
Consider the following statements regarding non-invasive prenatal screening (NIPS) for screening high risk pregnancies for aneuploidies:
1. It is carried out on maternal blood.
2. It is done before 10 weeks gestation.
3. It has a negative predictive value of about 98%.
4. Invasive testing is needed for confirmation of a positive test.
Which of the statements given above are correct?
Which of the following are examples of genomic imprinting?
1. Angelman syndrome
2. Williams syndrome
3. Prader-Willi syndrome
4. DiGeorge syndrome
Select the correct answer using the code given below: