On the basis of hereditary material(chromosome) most closest relative of man in
Options
(a) chimpanzee (b) gorilla (c) orangutan (d) gibbon
Correct Answer:
chimpanzee
Explanation:
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Ultimate source of organic variation is the process which provide raw materials for evolution is
Options
(a) sexual reproduction (b) meiosis (c) mutation (d) independent assortment
Correct Answer:
mutation
Explanation:
No explanation available. […]
Maximum ozone depletion is caused by
Options
(a) CO₂ (b) SO₂ (c) CFC (d) CH₄
Correct Answer:
CFC
Explanation:
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Root cap is absent in
Options
(a) mesophytes (b) hydrophytes (c) epiphytes (d) xerophytes
Correct Answer:
hydrophytes
Explanation:
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Blood group aggulutinogen is
Options
(a) glycoprotein (b) phosphoprotein (c) haemoprotein (d) phospholipid
Correct Answer:
glycoprotein
Explanation:
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Histamines are secreted by
Options
(a) mast cells (b) macrophages (c) Kupffer cells (d) Nissl’s granules
Correct Answer:
mast cells
Explanation:
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Amniocentesis is a technique to
Options
(a) determine any disease in heart (b) determine any hereditary disease in the embryo (c) know about the disease of brain (d) grow cell on culture medium
Polymerase chain reaction (PCR) is used for
Options
(a) DNA identification (b) DNA repair (c) DNA amplification (d) DNA cleavage
Correct Answer:
DNA amplification
Explanation:
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Origin of first toothed birds took place in
Options
(a) cretaceous (b) triassic (c) jurrasic (d) permian
Correct Answer:
jurrasic
Explanation:
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