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The service covers textbooks of all subjects published by NCERT for classes I to XII in Hindi, English and Urdu. The Entire book or individual chapters can be downloaded provided the …

While the Class XI book dealt with morphology, taxonomy, molecular and cellular aspects of physiology, the Class XII book deals with the physiological process of reproduction in flowering …

Class XI you have already learnt the structures of nucleotides and the way these monomer units are linked to form nucleic acid polymers. In this chapter we are going to discuss the structure …

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BIOLOGY The detritus food chain (DFC) begins with dead organic matter. It is made up of decomposers which are heterotrophic organisms, mainly fungi and bacteria. They meet their …

of molecular biology and genetics was laid down by many eminent scientists of that time, such as Watson, Crick, Nirenberg, Khorana, Monod, Benzer, etc. The contributions of these scientists …

BIOLOGY reproduction-related areas are currently in operation under the popular name ‘Reproductive and Child Health Care (RCH) programmes ’. Creating awareness among people …

BIOLOGY Let us look at so me interesting aspects about earth’s biodiversity based on the currently available species inventories. More than 70 per cent of all the species recorded are …

Observe the above diagram (Reference may be taken from Fig. 13.1 of Biology textbook for class XII, NCERT) and answer the following- (i) Which biome shows maximum range of annual …