Q. One of the important consequences of geographical isolation is : (a) No change in the isolated fauna (b) Preventing Speciation (c) Speciation through reproductive isolation (d) Random creation of…
Q.Which one of the following is a living fossil? (a) Highly genetically variable individuals (b) Constant low mutation rate (c) Large population size (d) Interbreeding within small isolated population Solution…
Q. Sickle cell anaemia has not been eliminated from the African population because : (a) It is controlled by recessive genes (b) It is not a fatal disease (c) It…
Q. The early stage human embryo distinctly possesses : (a) Gills (b) Gill slits (c) External ear(pinna) (d) Eye brows Solution : Correct option : B Early human embryo possesses…