Which one of the following are analogous structures?
Which one of the following are analogous structures?
Options
(a) Wings of Bat and Wings of Pigeon (b) Gills of Prawn and Lungs of Man (c) Thorns of Bougainvillea and Tendrils of Cucurbita […]
Evolution
Which of the following had the smallest brain capacity ?
Which of the following had the smallest brain capacity ?
Options
(a) Homo sapiens (b) Homo neanderthalensis (c) Homo habilis (d) Homo erectus
Correct Answer:
Homo habilis
Explanation:
Brain capacity in decreasing order : […]
Forelimbs of cat, lizard used in walking; forelimbs of whale used in swimming
Forelimbs of cat, lizard used in walking; forelimbs of whale used in swimming and forelimbs of bats used in flying are an example of:
Options
(a) Analogous organs (b) Adaptive radiation (c) Homologous […]
Homo erectus erectus is the scientific name of
Homo erectus erectus is the scientific name of
Options
(a) java Ape man (b) peking man (c) cro-magnon (d) neanderthal
Correct Answer:
java Ape man
Explanation:
Pithecanthropus erectus is also known as java […]
Human ancestors who left cave paintings were
Human ancestors who left cave paintings were
Options
(a) neanderthal man (b) cro-magnon man (c) java ape man (d) peking man
Correct Answer:
cro-magnon man
Explanation:
Cro-Magnon man are very close relative of modern […]
Hybrid vigour is due to
Hybrid vigour is due to
Options
(a) heterosis (b) overpopulation (c) both heterosis and overpopulation (d) none of these
Correct Answer:
heterosis
Explanation:
Heterosis or hybrid vigour is the condition in which […]
In the primitive atmosphere which was not available in free state?
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
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
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?
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 […]