Assertion : According to Hardy – Weinberg Equilibrium, the frequency of an allele remains the same
generation after genetation.
Reason : The only way to bring about a change is by natural selection.
A. A is correct and R is its explanation.
B. A and R both are correct but R is not an explanation to A
C. A is correct and R is false
D. A is false and R is correct
Answer : Option D
132. Which is not applicable to the Biological species concept ?
A. hybridization
B. natural population
C. reproductive isolation
D. gene pool
Answer : Option A
133. Mass extinction of the end of Mesozoic era was probably due to ?
A. continental drift
B. the collision of earth with large meteorites
C. massive glaciations
D. change in earth’s orbit
Answer : Option C
134. Apes share ............... blood groups with man
135. Present age of human known as ______.
136. Who was the first civilized man ?
137. Leakey and Leakey discovered the fossils of ______.
138. The correct sequence of course of cultural evolution from cromagnon to modern man is
A. Palaeoilthic – Mesolethic – Neolithic – Bronze – Iron – Atomic
B. Mesolethic – Bronze – Neolithic – Iron – Atomic
C. Palaeolithic – Neolithic – Iron – Bonze – Atomic
D. None above
Answer : Option A
139. Neanderthal man differs from modern man is ______.
A. receeding jaw
B. protuding jaw
C. could make good tools
D. could make good picture
Answer : Option A
140. ‘Piltdown man’ is