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General Knowledge - Biology

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Exercise

  • Section 1
"Everything should be made as simple as possible, but not simpler."
- Albert Einstein
25. 

O2 released in the process of photosynthesis comes from

A. CO2B. water
C. sugarD. pyruvic acid

26. 

Placenta is the structure formed

A. by the union of foetal and uterine tissue
B. by foetus only
C. by fusion of germ layers
D. None of these

27. 

Plants hormone that induces cell division is

A. auxinsB. gibberellins
C. kininsD. domins

28. 

Neurospora is used as genetic material because

A. it has short life cycle of 10 days
B. the product of single meiosis can be easily analysed
C. meiotic products are linearly arranged in the form of ordered tetrads
D. is a diploid fungus

29. 

Phloem is a tissue found in

A. reproductive organs of animals
B. plants
C. insects
D. mammals

30. 

N2 content is kept constant in the biosphere due to

A. N2 fixation
B. industrial pollution
C. nitrogen cycle
D. absorption of N2



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