The golden age of reptiles is :
(A) Cenozoic era
(B) Palaeozoic era
(C) Mesozoic era
(D) Silurian period
Answer:
The theory of use and disuse of organ was proposed by :
(A) Darwin
(B) Lamarck
(C) De Vries
(D) Hooker
Answer:
One of the following theories were proposed by Weissman :
(A) Law of inheritance
(B) Theory of inheritance of acquired characters
(C) Theory of natural selection
(D) Theory of germplasm
Answer:
Ontogeny recapitulates phylogeny this theory is called :
(A) Biogenetic law
(B) Law of embryology
(C) Law of acquired characters
(D) Law of Bridges
Answer:
The brain capacity of Homoerectus is :
(A) 800 cc
(B) 900 cc
(C) 1200 cc
(D) 1400 cc
Answer:
An example of Innate immunity is :
(A) PMNLneutrophils
(B) Tlymphocytes
(C) Blymphocytes
(D) TH cells
Answer:
Cocaine is extracted from :
(A) Erythroxylum coca
(B) Cannabis sativa
(C) Papaver somniferum
(D) Atropa belladonna
Answer:
The enzyme that cuts DNA is :
(A) DNApolymerase
(B) DNAligase
(C) DNAlyase
(D) Restriction endonuclease
Answer:
In the association between two organisms, if one organism is benefited and the other is not benefited, this relationship is known as :
(A) Symbiotism
(B) Mutualism
(C) Commensalism
(D) Parasitism
Answer:
Opiate narcotics drugs are :
(A) Antianxiety
(B) Analgesic
(C) Hypnotic
(D) Antihistamine
Answer: