class12

CANCER:- DETECTION, DIAGNOSIS & TREATMENT

CANCER ⇒Non-communicable diseases ⇒Most dreaded (fearful) diseases ⇒Cancer is Uncontrolled, Abnormal, and Excessive mitotic division of cells. ⇒Normal cell shows Contact inhibition(Growth of cells stop after getting in contact with other cells by activation of tumor suppressor genes of cells) ⇒ Cancer cell does not shows Contact Inhibition ⇒ Cellular oncogenes or Proto-oncogenes present in every […]

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AIDS [Acquired Immuno deficiency syndrome]

AIDS [Acquired Immuno deficiency Syndrome]

AIDS [Acquired Immuno deficiency Syndrome] is  caused by the Human Immuno deficiency Virus (HIV), a member of a group of viruses called retrovirus, which have an envelope enclosing the RNA genome . Acquired →acquired during life time Immuno deficiency →Immune System Weak Syndrome →Group of System AIDS is not Congenital diseases(which are present in the

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POLYMER CLASS 12 CHEMISTRY NOTES [PDF DOWNLOAD]

POLYMER CLASS 12 CHEMISTRY NOTES [PDF DOWNLOAD] Polymer is defined as a high molecular weight compound formed by the combination of a large number of one or more types of small molecules(monomers). CLASSIFICATION OF POLYMERS:- BASED ON SOURCE: NATURAL POLYMERS:– These are of natural origin and these are found in plants and animals. Natural polymers

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IMPORTANT TERMS OF PRINCIPLES OF INHERITANCE AND VARIATION

IMPORTANT TERMS OF “PRINCIPLES OF INHERITANCE AND VARIATION”

IMPORTANT TERMS OF “PRINCIPLES OF INHERITANCE AND VARIATION”   GENEITCS:- The study of heredity and variation. HEREDITY:- The Study of Transfer of characters from one generation  to another generation. INHERITANCE:- The process of transfer of characters from one generation to another generation. VARIATION:- The degree by which offspring differ from their parents Physical unit of

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