What are Okazaki fragments ?

What is biogas? What are its components ? What is the calorific value of biogas?

A solution prepared by dissolving 8.95 mg of a gene fragment in 35.0 mL of water has an osmotic pressure of 0.335 torr at 25^(@)C . Assuming that the gene fragment is a non-electrolyte, calculate its molar mass.

Name the technique used to separate DNA fragments.