Microbial genetics are classified in the three domains of life:
- Eukaryotic genetics
- Prokaryotic genetics
- Archaeal genetics 

Note:
Although they are not designated as living cells, viral genes also vary in their genetic material, genetic expression and replication compared to the three domains of life.

Classifications of Microbial Genetics

The genetic code refers to mRNA transcripts translated into amino acids to make proteins. This occurs due to the nucleotide triplets called codons that code for amino acids.

The Genetic Code

Microbial genetics is the study of the microbial cell genetic storage in the form DNA and its mechanisms of replication and expression.

University of Wisconsin - Madison

A microscopic organism that can't be seen with the naked eye.

Microbes

- The study of heredity
- Much of the history of genetics is due to studies on microbial systems.
- The field of genetics was founded on the discovery of DNA and that it is the molecule required for heredity.

Genetics

https://openstax.org/details/books/microbiology/

Microbiology covers the scope and sequence requirements for a single-semester microbiology course for non-majors. The book presents the core concepts of microbiology with a focus on applications for careers in allied health. The pedagogical features of the text make the material interesting and accessible while maintaining the career-application focus and scientific rigor inherent in the subject matter. Microbiology’s art program enhances students’ understanding of concepts through clear and effective illustrations, diagrams, and photographs.

Microbiology is produced through a collaborative publishing agreement between OpenStax and the American Society for Microbiology Press. The book aligns with the curriculum guidelines of the American Society for Microbiology.

OpenStax Microbiology Textbook

- Bacteria
- Viruses
- Fungi
- Prions
- Protozoans
- Protist
- Helminths

Types of Microbes

Microbes are too small to be seen with the naked eye, so humans have developed techniques and technology to observe and study them.

Visualizing Microbes

Microbial Genetics

Microbial growth is indicated by the increase in number of cells by division of parent cells into daughter cells. 

Microbial Growth

Epidemiology

Microbial ecology is the study of microbial populations and how they interact with their environment.

Microbial Ecology

What is a microbe?

Which of the following best describes a microbe?

Which of the following is NOT considered a microbe?

Which of the following environments can microbes be found in?

Genes are specific sequences of DNA that provide the code for particular traits. These traits can be both physical and psychological characteristics, and their ultimate expression is determined by the interplay between genetics and environmental factors.

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