The way in which traits are passed from one generation to the next-and sometimes skip generations-was first explained by Gregor Mendel. By experimenting with pea plant breeding, Mendel developed three principles of inheritance that described the transmission of genetic traits, before anyone knew genes existed.
1. Steppe. Much of the region of Central Asia is covered by a semi-arid, treeless, mostly flat land known as the Steppe or Steppes. Part is in Europe by the Ukraine, but most is in Asia extending to eastern Mongolia. 1  Steppe Tribes.
Geography of Ancient India. The present-day countries of India, Bangladesh, and Pakistan are located in southern Asia. The area these countries fill is called the Indian subcontinent. A subcontinent is a large area of land that is separated by geography from the rest of a continent. To the north of the Indian subcontinent lie the tallest mountains in the world, the Himalayas (hihÂ»muhÂ»LAYÂ»uhz). The Himalayas form a natural barrier between the Indian subcontinent and the rest of Asia.