Q. Which one of the following phenomena supports Darwin's concept of natural selection in organic evolution? (a) Production of 'Dolly', the sheep by cloning (b) Development of organs from 'stem…
Q. Character which is closely related to human evolution : (a) Disappearance of tail (b) Binocular vision (c) Flat nails (d) Reduction in size of jaws Solution : Correct option…
Q. Which one of the following experiments suggests that simplest living organisms could not have originated spontaneously from non-living matter? (a) Larvae could appear in decaying organic matter. (b) Meat…
Q. During DNA replication, Okazaki fragments are used to elongate : (a) The lagging strand away from the replication fork. (b) The laaging strand towards the replication fork. (c) The…