biology mcq questions and answers for competitive exams
biology mcq questions and answers for competitive exams UPSC SSC , SSC CGL, upsc Civils , Entrance exams Online test practice online free Quiz, mock practice online
1.
What would happen if human blood becomes acidic?
a
Oxygen-carrying capacity of haemoglobin is decrease
b
Oxygen-carrying capacity of haemoglobin is increase
3.
Chemical reactions could have converted simple organic compounds into for the origin of life.
c
Nitrogen, oxygen and other gases
4.
Study of internal structure of organism is called :
5.
Biofuel is obtained from the seed of -
6.
Pine, fir, spruce, cedar, larch and cypress are the famous timber-yielding plants of which several also occur widely in the hilly regions of India. All these belong to
8.
Plants that grow in saline water are known as :
9.
Mycology is the branch of botany in which we study about
11.
One of the following is most suitable for study of mutations
12.
Age of fossils in the past was generally determined by radio-carbon method and other methods involving radioactive elements found in the rocks. More precise methods, which were used recently and led t
a
Electron Spin Resonance (ESR) and fossil DNA
b
study of carbohydrates/proteins in fossils
c
study of carbohydrates/proteins in rocks
d
study of the conditions of fossilization
13.
Of the following taxonomic categories which is the most inclusive (i.e. is the highest in hierarchy)?
14.
Which of has following group of gases contribute to the 'Green House Effect'?
a
Carbon Dioxide and Methane
b
Carbon tetrafluoride and Nitrous oxide
c
Carbon monoxide and Sulphur dioxide
15.
Fertilization is process in which
a
A male gamete fuse with egg cell
b
Transfer of pollen grains nuclei
c
Fusion of male gamete with polar
d
Formation of seed from ovule
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biology mcq questions and answers for competitive exams