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

7. Prokaryotic Cell Structures & Functions

Introduction to Bacterial Plasmids

Microbiology

7. Prokaryotic Cell Structures & Functions

Introduction to Bacterial Plasmids

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Multiple Choice

Which types of genes are commonly found in bacterial plasmids?

Genes that encode for proteins used in cellular respiration.

Genes that encode for proteins used in DNA replication.

Genes that encode for antibiotic resistance.

Genes that encode for cell envelope/membrane development.

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Verified step by step guidance

Understand what plasmids are: Plasmids are small, circular, double-stranded DNA molecules that are distinct from a cell's chromosomal DNA. They are most commonly found in bacteria and often carry genes that may benefit the survival of the organism.

Identify the types of genes typically found in plasmids: Plasmids often carry genes that provide a selective advantage to the bacteria, such as antibiotic resistance genes, which help bacteria survive in the presence of antibiotics.

Consider the function of antibiotic resistance genes: These genes encode proteins that can neutralize antibiotics, pump them out of the cell, or modify the target of the antibiotic, thereby conferring resistance.

Differentiate between chromosomal and plasmid genes: While chromosomal DNA contains essential genes for basic cellular functions like cellular respiration and DNA replication, plasmids usually carry non-essential but advantageous genes like those for antibiotic resistance.

Conclude why antibiotic resistance genes are commonly found in plasmids: The mobility of plasmids allows for the horizontal transfer of antibiotic resistance genes between bacteria, facilitating rapid adaptation to antibiotic pressure.