In the primitive atmosphere which was not available in free state?
Options
(a) CH₄ (b) H₂ (c) O₂ (d) H₂O
Correct Answer:
O₂
Explanation:
The early atmosphere was without free oxygen, so atmosphere was […]
Institute of paleobotany is situated at
Options
(a) Delhi (b) Allahabad (c) Lucknow (d) Aurangabad
Correct Answer:
Lucknow
Explanation:
The institute of Paleobotany is situated at Lucknow. The name of this institute is due […]
Lederberg and lederberg demonstrated that mutations are preadaptive. They used the following tecnique for the purpose
Options
(a) replica plating (b) gene sequencing (c) transduction (d) transformation
Correct Answer:
replica plating
Explanation:
No […]
Man was originated in which era?
Options
(a) paleocene (b) pliocene (c) miocene (d) oilgocene
Correct Answer:
miocene
Explanation:
The term hominid refers to humans and their direct and near-direct bipedal ancestors. Hominids originated […]
Maximum cranial capacity was in
Options
(a) cro-magnan man (b) peking man (c) neandertal man (d) java ape man
Correct Answer:
cro-magnan man
Explanation:
No explanation available. Be the first to write the […]
Miller and Urey performed an experiment to prove the origin of life. They took gases NH₃ and H₂ alongwith
Options
(a) N₂ and H₂O (b) CH₄ and N₂ (c) H₂O and CH₄ (d) […]
Modern man is evolved
Options
(a) 10000 years ago (b) 25000 years ago (c) 5000 years ago (d) 50000 years ago
Correct Answer:
25000 years ago
Explanation:
No explanation available. Be the first […]
Mutation cannot explain
Options
(a) mimicry (b) industrial melanism (c) connecting link (d) living fossils
Correct Answer:
living fossils
Explanation:
First, there are no living fossil animals; either it’s a fossil or an […]
Natural selection favours the leaf butterfly because it shows:
Options
(a) country shading (b) batesian mimicry (c) mullerian mimicry (d) portective resemblance
Correct Answer:
batesian mimicry
Explanation:
In Batesian mimicry a scarce, palatable […]
Natural selection’s theory was given by
Options
(a) Hugo de Vries (b) Lamarck (c) Darwin (d) Wallace
Correct Answer:
Darwin
Explanation:
No explanation available. Be the first to write the explanation for this […]
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