Who was the head of the Allahabad congress

Whitening of hair is caused by the deficiency of _________.

How many pairs of ribs are typically present in the human body?

Astigmatism affects which part of the body?

Under the electron microscope, which cell organelle is visible as either clusters or single, small dots that float freely in the cytoplasm?

What is the molecular structure of DNA? 

Which disease is caused by bacteria?

The term 'Gene' was coined by:

Dinosaurs are classified as which type of creatures?

Which of the following disease is caused by the deficiency of iodine in food?

When was the H5N1 virus, which causes bird flu, first discovered?