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· Genetics: Study of inheritance, heredity and variation of characters or Study of genes and chromosomes.
· Inheritance: Transmission of characters from parents to progeny.
· Heredity: Resemblance b/w offspring and their parents.
Nucleic acids (DNA & RNA) are the building blocks of genetic material.
DNA is the genetic material in most of the organisms.
RNA is the genetic material in some viruses. RNA mostly functions as messengers.