Choose the correct sequence of air pollution and its components with the effect it produces
Options
(a) chemical factory → NO₂ → ozone hole (b) automobile exhaust → N₂O → green house effect […]
Effect of pollution is on
Options
(a) mutation (b) cell division (c) crop rotation (d) ecological balance
Correct Answer:
ecological balance
Explanation:
No explanation available. Be the first to write the explanation for […]
If global warming continues, the organism which may face more severe threat is
Options
(a) cow (b) banana (c) snow leopard (d) dolphin
Correct Answer:
snow leopard
Explanation:
No explanation available. Be the […]
A red coloured oxygen containing pigment present in muscle
Options
(a) haemoglobin (b) myoglobin (c) haemocyanin (d) Both haemoglobin & myoglobin
Correct Answer:
myoglobin
Explanation:
No explanation available. Be the first to write […]
All or none’ law is not applicable for
Options
(a) whole skeletal muscle (b) single skeletal muscle fibre (c) whole cardiac muscle (d) single smooth muscle fibre
Correct Answer:
whole skeletal muscle
Explanation: […]
Imbalance of certain hormones, deficiencies of calcium and vitamin D are the major causative factors of
Options
(a) rheumatoid arthritis (b) osteoporosis (c) osteoarthritis (d) gouty arthritis
Correct Answer:
osteoporosis
Explanation:
No explanation […]
A hereditary disease which is never passed on from father to son is
Options
(a) autosomal linked disease (b) X chromosomal linked disease (c) Y chromosal linked disease (d) none of the above
An incomplete dominance is shown by
Options
(a) Pisum sativum (b) Mirabilis jalapa (c) Lathyrus odoratus (d) Neurospora crassa
Correct Answer:
Mirabilis jalapa
Explanation:
No explanation available. Be the first to write the […]
Cross between individual with dominant trait and recessive (homozygous) parent is
Options
(a) test cross (b) back cross (c) F1 cross (d) F2 cross
Correct Answer:
test cross
Explanation:
No explanation available. Be […]
A good example for recapitulation theory is
Options
(a) canine teeth of dog (b) placenta of mammals (c) tadpole larva of frog (d) embryonic membranes of reptiles
Correct Answer:
tadpole larva of frog
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