Table of contents

1. Introduction to Microbiology3h 22m
2. Disproving Spontaneous Generation1h 18m
3. Chemical Principles of Microbiology3h 38m
4. Water1h 28m
5. Molecules of Microbiology2h 23m
6. Cell Membrane & Transport3h 28m
7. Prokaryotic Cell Structures & Functions5h 52m
8. Eukaryotic Cell Structures & Functions2h 18m
9. Microscopes2h 46m
10. Dynamics of Microbial Growth4h 36m
11. Controlling Microbial Growth4h 10m
12. Microbial Metabolism5h 16m
13. Photosynthesis2h 31m
14. DNA Replication2h 25m
15. Central Dogma & Gene Regulation7h 14m
16. Microbial Genetics4h 44m
17. Biotechnology3h 0m
18. Viruses, Viroids, & Prions4h 56m
19. Innate Immunity7h 15m
20. Adaptive Immunity7h 14m
21. Principles of Disease6h 57m

16. Microbial Genetics

Conjugation: Hfr & F' Cells

Microbiology

16. Microbial Genetics

Conjugation: Hfr & F' Cells

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Multiple Choice

What is transferred between two bacterial cells in Hfr conjugation?

A small portion of the integrated F plasmid from the Hfr donor cell.

A small, random portion of the Hfr donor's cells chromosome.

A small portion of the Hfr donor cell's chromosome and integrated F plasmid.

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Verified step by step guidance

Understand the concept of Hfr conjugation: Hfr (High frequency of recombination) cells are bacterial cells where the F plasmid is integrated into the bacterial chromosome.

Recognize that during Hfr conjugation, the transfer of genetic material occurs from the Hfr donor cell to the recipient cell through a pilus.

Identify that the transfer begins with the origin of transfer (oriT) on the integrated F plasmid, which is part of the bacterial chromosome in Hfr cells.

Note that as the transfer proceeds, a portion of the donor's chromosomal DNA adjacent to the integrated F plasmid is also transferred to the recipient cell.

Conclude that the transferred material includes both a small portion of the Hfr donor cell's chromosome and the integrated F plasmid, which may not always include the entire F plasmid due to the time required for complete transfer.