Questions

Gene is a segment of chromosomal DNA or a sequence of DNA or RNA that codes for a molecule that has a function. It is the basic physical and functional unit of heredity.

As genes are made up of DNA it impies that they are long, double chains of nucleic acids as DNA is made of nucleic acids.

The oxygenated blood  flows through pulmonary veins then leaves the lungs, which return it to the left heart, completing the pulmonary cycle.

Economic growth is measured by the percentage of gross domestic product. GDP refers to the total value of goods and services produced in the country.

Bismillah Khan was associated with Shehnai. He made the Shehnai as the classical musical instrument in his concert in All India Musical Conference, Kolkata in 1937.