Q. No.The mechanism of non cellular aggregates of giant macromolecules to cell with membranous envelop is
(1) Natural selection
(2) Not known
(3) Mutation
(4) Recombination
(1) Natural selection
(2) Not known
(3) Mutation
(4) Recombination
The flourishing period of seed ferns is
(1) Jurassic
(2) Devonian
(3) Carboniferous
(4) Triassic
Gnetales evolved from
(1) Psilophyton
(2) Rhynia type plants
(3) Tracheophyte ancestors
(4) Chlorophyte ancestors
Which of the following is not true?
(1) Small sized reptiles of dinosaurs of that era still exist today.
(2) Tyrannosaurs rex was about 20 feet in height and had hugesome dagger like teeth.
(3) Dinosaur extinct, a possible reason may be most of them has evolved into birds
(4) Giant ferns fell to form coal deposits very fast
Which of the following feature is not of Ramapithecus?
(1) Hairy, walked like gorillas and chimpanzees
(2) Existed 15mya
(3) Ramapithecus was more man like
(4) After its extinction Dryopithecus came into picture.
The man like primates walked in eastern Africa around 3-4 mya. This belief was supported by
(1) Hominid features of bones discovered in Ethiopia and Tanzania.
(2) Hominid features of bones discovered in Whole Africa
(3) Hominid features of bones discovered in Peru.
(4) Hominid features of bones discovered in Australia
Which of the following does not hold true for Australopithecus?
(1) Existed 2 mya
(2) Probably lived in East African grasslands
(3) They hunted with stone weapons
(4) Ate meat
............... operates to eliminate intermediate phenotypes.
(1) Directional selection
(2) Disruptive selection
(3) Stabilizing selection
(4) Random chance
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