Question

mechanisms of recombination from donor to recipient cell

REVIEW Transformation Generalized transduction Conjugation F+ A. Kind of DNA transferred (chram oame, plamid or both) Is donor living or dead? Is direct contact required? yes or no Is a virus required? yes or no Will the process occur if DN Aase is in the medium? yes or no
*kind of dna transfered (chromosome, plasmid, or both)

Answer 1

A.	Transformation	conjugation	generalized transduction
Kind of DNA transferred	a fragment of linear DNA	H+- only plasmid can transfer Hfr-both plasmid and chromosomal DNA can transfer, in this process plasmid integrated into the chromosomal DNA then a piece of it transfer into the donor cell.	generally it occur during the lytic cycle of bacteeiophage. Bacteriophage virus induce the transfer of a piece of bacterial chromosome to a another bacteria
Is donor living or dead?	YES may be possible, because in this process the active alive donor is not required.	Not possible, because the donor cell have to be active for processing its own DNA.	If the the donor is active during the phage infection then this process may be possible. After infection phage virus kill the becterium and then transfer a piece of Dna to a another bacterium
Is direct contact required?	Not require.	Must be require direct physical contact with donor to recipient.	Not require.
Is virus required?	No	no	Yes, only possible after viral infection.
If DNase present?	Not possible	may be possible because gene transfer involves physical contact so sex pilus is fromed through which transfer process occur.	may be possible. Beacuse virus are aslo enclosed.