MicroBio

This activity requires that you correctly identify the processes of DNA replication, gene expression, and recombination by matching images to brief descriptions of each process.

Replication: (pic of 3 cells), DNA-2DNA Gene: expo.: DNA-mRNA-protein, transcription, translation (pic of 1 cell) Recombination: (pic of 2 cells), transformation, transduction, conjugation

This activity requires that you sort statements according to whether they are associated with transformation, conjugation, or transduction.

Transformation: Extracellular DNAases would block this transfer mechanism, his mechanism was first explored by Griffith as he studied smooth and rough strains of Streptococcus pneumoniae. Conjugation:This mechanism is initiated by cells with F plasmids. This mechanism requires cell-to-cell contact. A chemical that blocked the formation of a pilus would block this genetic transfer mechanism. Transduction: A virus that infects bacteria is a key component in this transfer mechanism. All mech.:This mechanism may result in the transfer of genes that encode antibiotic resistance. This mechanism of genetic transfer always involves a one-way transfer from a donor cell to a recipient cell.

In this activity, you will correctly identify the three methods of DNA transfer in bacteria.

Transformation: pics with 4 cells Conjugation: pic with 6 cells Transduction: pic with 5 cells