Category: Articles

  • Biology | Heredity and Variation

    Heredity and Variation All members of a species have many characteristics in common, but no two individuals are exactly alike. The common characteristics are due to common heredity. These are transferred from parents to progeny via gametes. The differences are called variations and are caused by heritable mutations, i.e. sudden changed in the genetic material,…

  • Even JEE has mistakes in it

    A senior IIT professor has pointed out ‘‘serious blunders’’ in this year’s IIT-JEE test that concluded on Sunday. He claims a clever student can get 93 marks without any preparation. The claim was made by Rajeev Kumar, professor of computer science, IIT Kharagpur. IIT-Madras, which conducted the JEE has, however, disputed his claim. Kumar has…