Advertisements
Advertisements
Question
How is transformation different from transduction?
Distinguish Between
Advertisements
Solution
| Feature | Transformation | Transduction |
| Mechanism | The direct uptake of naked DNA fragments from the surrounding environment. | The transfer of bacterial DNA via a virus (bacteriophage). |
| Requirement | Requires the recipient cell to be in a physiological state of competence. | Requires a viral vector (bacteriophage) to infect and carry the DNA. |
| DNA Source | Free-floating DNA is typically released from lysed (dead) bacteria. | DNA accidentally packaged into a viral head during viral replication in a host. |
| DNase Sensitivity | Sensitive; the naked DNA can be degraded by enzymes in the environment. | Resistant; the DNA is protected inside the viral protein coat. |
| Discovery | First observed by Frederick Griffith (1928) in Streptococcus pneumoniae. | Discovered by Zinder and Lederberg (1951) in Salmonella. |
shaalaa.com
Is there an error in this question or solution?
Chapter 6: Molecular Basis of Inheritance - TEST YOUR PROGRESS [Page 273]
