100 Best Biology MCQ
Q113). Mumps is a disease caused by
a).fungus
b).bacterium
c).virus
d).None of these
Correct Answer:
virus
Explaination:
Q114). Rain water helps to increase the ____ to some extent.
a).phosphorous contents
b).nitrogen contents
c).calcium contents
d).potash contents
Correct Answer:
calcium contents
Explaination:
Q115). Number of chromosomes in Down’s syndrome is
a).46
b).47
c).48
d).49
Correct Answer:
47
Explaination:
Q116). Plants are killed in winter by frost
a).because of desiccation and mechanical damage to the tissues
b).because no photosynthesis takes place at such low temperature
c).because respiration ceases at such low temperature
d).because there is no transpiration
Correct Answer:
because of desiccation and mechanical damage to the tissues
Explaination:
Q117). One of the following is most suitable for study of mutations
a).Haploids
b).Diploids
c).Tetraploids
d).Polyploid
Correct Answer:
Haploids
Explaination:
Q118). Pulses are a good source of
a).carbohydrates
b).fats
c).proteins
d).vitamins
Correct Answer:
proteins
Explaination:
Q119). Oxygen in our blood is transported by a protein named
a).haemoglobin
b).keratin
c).collagen
d).myoglobin
Correct Answer:
haemoglobin
Explaination:
Q120). Nymph is the name of young one of
a).butterfly
b).beetle
c).housefly
d).cockroach
Correct Answer:
cockroach
Explaination: