DNA Recombination Events

________________ is the transfer of DNA from cell to cell

Recombination

Recombination in regards to bacteria is known as ____________ _____ ________.

Horizontal Gene Transfer

What are the types of HORIZONTAL GENE TRANSFER?

1) Conjugation 2) Transformation 3) Transduction

Conjugation is the _____ transfer of DNA from cell to cell using the ___ _____.

direct, sex, pilus

Cells that can carry out conjugation contain an __ (_______) - Factor—a plasmid—that can make a ___ pilus and carry out this transfer of DNA.

F, Fertility, sex

F-Factor plasmids of conjugation transfer can have genes that make bacteria MORE virulent; these are called __ - _______.

R, Plasmids

Transformation is the ability of some bacteria to pick up loose DNA from its ___________; typically coming from another cell that has ____.

environment, died

Bacteria that can carry out transformation contain _________ cells that can pick up loose DNA from their environment.

competent

Transduction is when a ____________ serves as a carrier of DNA from a donor cell to a recipient cell.

bacteriophage

_________ ___________ was the first demonstration of transformation: Live R (rough) strain bacteria picked up the virulence factor capsule from S (smooth) strain bacteria, which killed the mouse.

Griffith’s Experiment