Q. de Vries gave his mutation theory on organic evolution, while working on : (a) Oenothera lamarckiana (b) Drosophila melanogaster (c) Pisum sativum (d) Althea rosea Solution : Correct option…
Q. Which of the following is not true for a species? Members of a species can interbreed Variations occur among members of a species Gene flow does not occur between…
Q. There are two opposing views about the origin of modern man. According to one view, Homo erectus in Asia was the ancestor of modem man. A study of variations of DNA,…
Q. Homo sapiens have evolved in : (a) Paleocene (b) Pleistocene (c) Oligocene (d) Miocene Solution : Correct option :B The first Homo sapiens have evolved in the Pleistocene Epoch. This time…