The following points highlight the 3 modes of gene transfer and hereditary recombination in germs. The modes are: 1. Transformation 2. Transduction 3. Bacterial Conjugation.
Mode number 1. Change:
Historically, the finding of change in germs preceded one other two modes of gene transfer. The experiments carried out by Frederick Griffith in 1928 suggested for the time that is first a gene-controlled character, viz. Development of capsule in pneumococci, could be utilized in a non-capsulated number of these germs.read more