Bacterial Conjugation These cards are all about the process of conjugation. :) 3.0 / 5 based on 1 rating ? BiologyMicrobiology and fungiASAQA Created by: Zoe AlfordCreated on: 29-05-10 11:27 Bacterial Conjugation Conjugation occurs when one bacterial cell (the donor cell) transfers DNA to another bacterial cell (the recipient cell). 1 of 6 Step 1 - One cell produces a thin projection that meets another cell. This forms a thin conjugation tube between the two cells. 2 of 6 Step 2 - The donor cell replicates one of its plasmids 3 of 6 Step 3 - The circular DNA is broken to make it linear before it passes along the tube into the recipient cell, where it becomes linear again. 4 of 6 Horizontal gene transmission Conjugation can also be known as horizontal gene transmission. Remember that this process only occurs between members of different bacterial species. 5 of 6 Vertical gene transmission Where genes are passed down from one generation of a species to the next generation of the same species is called Vertical gene transmission. 6 of 6
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