CBSE Supplementary Reading Material & Textual Material

JEE Main 2015 Preparation

AIEEE now JEE Main will be conducted first time in 2015 is very important entrance exam for those students who wish to pursue their career in engineering and architecture fields....

CBSE Supplementary Reading Material & Textual Material

Chromosomes

You may recall that the interphase nucleus has a loose and indistinct network of nucleoprotein fibres called chromatin. But during different stages of cell division, cells show structured chromosomes in...

CBSE Supplementary Reading Material & Textual Material

Evolution

In fact, there is no real ‘progress’ in the idea of evolution. Evolution is simply the generation of diversity and the shaping of the diversity by environmental selection. The only...

CBSE Supplementary Reading Material & Textual Material

Golgi Apparatus

Camillo Golgi (1898) first observed densely stained reticular structures near the nucleus.These were later named Golgi bodies after him.They consist of many lat, disc-shaped sacs or cisternae of 0.5ìm to...

CBSE Supplementary Reading Material & Textual Material

Deoxyribonucleic Acid

James Dewey Watson was born in Chicago on 6 April 1928. In 1947, he received B.Sc. degree in Zoology. During these years his interest in bird-watching had matured into a...

CBSE Supplementary Reading Material & Textual Material

Cell Membrane

The detailed structure of the membrane was studied only after the advent of the electron microscope in the 1950s. Meanwhile, chemical studies on the cell membrane, especially in human red...

CBSE Supplementary Reading Material & Textual Material

Open Educational Resources

General Documents Technological Reforms in Agriculture Force Motion Universal Law of Gravitation Defects of Vision Mirage Twinkling of Stars Dispersion of White Light Food Crops in India Industrial Pollution in...

CBSE Supplementary Reading Material & Textual Material

Tangent

10.1 Introduction You have studied in Class IX that a circle is a collection of all points in a plane which are at a constant distance (radius) from a fixed...

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