Compare the mechanisms of genetic recombination in bacteria.

-

Compare the mechanisms of genetic recombination in bacteria.



VERTICAL GENE TRANSFER-occurs during reproduction between generations of cells
HORIZONTAL GENE TRANSFER-the transfer of genes between cells of the same generation

TRANSFORMATION- genes are transferred from one bacterium to another as "naked" DNA in solution

CONJUGATION- genetic material is transferred fro one bacterium to another; requires direct cell-to-cell contact; cells must be of the opposite mating type (F- and F+, Sex pili)

TRANSDUCTION-bacterial DNA is transferred from a door cell to a recipient cell inside a virus that infects bacteria called a bacteriophage.

Comments

Post a Comment

Popular posts from this blog

JAD Advantages and Disadvantages

-
JAD Advantages and Disadvantages : Compared with traditional methods, JAD is more expensive and can be cumbersome if the group is too large relative to the size of the project. Many companies find, however, that JAD allows key users to participate effectively in the requirements modeling process. Read:  What is JAD and how are users involved? What are advantages and disadvantages of JAD? When users participate in the systems development process, they are more likely to feel a sense of ownership in the results, and support for the new system. When properly used, JAD can result in a more accurate statement of system requirements, a better understanding of common goals, and a stronger commitment to the success of the new system. More:  RAPID APPLICATION DEVELOPMENT
Read more

What is JAD and how are users involved? What are advantages and disadvantages of JAD?

-
What is JAD and how are users involved? What are advantages and disadvantages of JAD? Joint application development, is a popular fact finding technique that brings users into the development process as active participants. Users have a vital stake in the information system, and should participate fully in the development process. They are/should be involved at every stage of development. Advantages : Users can participate effectively in the requirements modeling stage. More accurate statement of systems requirements, better understanding of common goals and stronger commitment to success of the new project Disadvantages : More expensive, can be cumbersome if the group is too large for the project.
Read more