Arrange the following events of meiosis in correct sequence:(a) Crossing over, (b) Synapsis, (c) Terminalisation of chiasmata, (d) Disappearance of nucleolus
- A(b), (c), (d), (a)
- B(b), (a), (d), (c)
- C(b), (a), (c), (d)
- D(a), (b), (c), (d)
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The main organelle involved in modification and routing of newly synthesized proteins to their destinations is :
There are two opposing views about origin of Modern man. According to one view Homo erectus in Asia were the ancestors of modern man. A study of variations of DNA however suggested African origin of Modern man. What kind of observation on DNA variation could suggest this ?
The world's highly prized wool yielding 'Pashmina' breed is :
Grey crescent is the area :
Photosynthesis in C4 plants is relatively less limited by atmospheric CO2 levels because :
There exists a close association between the alga and the fungus within a lichen. The fungus :
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