Question

7 which of the following is not true of conjugation? 2 points multiple choice it transfers genes for a polysaccharide capsule. the donor retains a copy of the transferred genes. it transfers genes for drug resistance. it involves direct contact between cells. it transfers genes for resistance to heavy metals.

Explanation:

Conjugation is a process of genetic transfer in bacteria. During conjugation, the donor cell transfers a copy of its plasmid (or part of its chromosome in Hfr strains) to the recipient cell. The donor does not retain a copy of the transferred genes in the case of non - replicative transfer (although in some cases with plasmids that can replicate, there can be a mechanism to maintain the plasmid in the donor). However, the key point is that the statement "The donor retains a copy of the transferred genes" is not a general and always - true characteristic of conjugation. Conjugation can transfer genes for polysaccharide capsules (e.g., in some pathogenic bacteria), drug resistance (common with resistance plasmids), resistance to heavy metals (also plasmid - mediated in many cases), and it involves direct cell - to - cell contact (mediated by the sex pilus).

Answer:

The donor retains a copy of the transferred genes.