SBT 423: DIAGNOSIS AND CONTROL OF PLANT DISEASES
1.1 Plant Disease Diagnosis
The process of identifying plant diseases is called diagnosis. The science of the theoretical and
practical aspects of diagnosis is termed diagnostics.
SBT 422: VIROLOGY
Viruses are infectious pathogens that are too small to be seen with a light microscope.
The simplest viruses are composed of a small piece of nucleic acid surrounded by a protein coat.
Viruses carry genetic information in th
Mendelism, How it all began
Genetics is the study of genes, the biological information units that control heredity, that is
the way characteristics of organisms are passed on, through successive generations, from
parents to their off-springs a