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Free download PDF of General knowledge(gk) multiple choice questions(mcqs) and answers on Biology. These general awareness quiz objective questions answers include mcqs on parathyroid hormone, polyploidy etc.
(151)
Which one of the following is a useful functional association between fungi and the roots of higher plants?
[A]
Lichen
[B]
Biofertilizer
[C]
Coralloid root
[D]
Mycorrhiza
Comment
(152)
Soft drinks such as cocoa contain significant quantities of:
[A]
renin
[B]
tannin
[C]
caffeine
[D]
nicotine
Comment
(153)
Epiphytes are plants which depend on other plants for
[A]
shade
[B]
food
[C]
water
[D]
mechanical support
Comment
(154)
When ants bite, they inject
[A]
Methanol
[B]
Stearic acid
[C]
Formic acid
[D]
Glacial acetic acid
Comment
(155)
At which stage in its life cycle, does the silk worm yield the fibre of commerce?
[A]
Pupa
[B]
Egg
[C]
Imago
[D]
Larva
Comment
(156)
Antigen is a substance which
[A]
is used to treat poisoning
[B]
stimulates formation of antibody
[C]
lowers body temperature
[D]
destroys harmful bacteria
Comment
(157)
When one gene controls two or more different characters simultaneously, the phenomenon is called
[A]
polyteny
[B]
polyploidy
[C]
pleiotropy
[D]
apomixes
Comment
(158)
Among living organisms, which one of the following is the most responsible factor for bringing about the origin of a new species?
[A]
Isolation
[B]
Mutation
[C]
Sexual reproduction
[D]
Natural selection
Comment
(159)
Octopus is
[A]
an echinoderm
[B]
an arthropod
[C]
a hemichordate
[D]
a mollusk
Comment
(160)
In human body, which one of the following hormones regulates blood calcium and phosphate?
[A]
Thyroxine
[B]
Glucagon
[C]
Growth hormone
[D]
Parathyroid hormone
Comment
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