Which of the following explains the difference between a biotype and a serotype quizlet?

D)A biotype is the biochemical profile of a particular microorganism, while the serotype is the difference in its surface structures/antigens that will lead to separate immune responses from an organism (characterized by presence of different antibodies in the individual’s serum).

What is the definition of Biovar or biotype quizlet?

A group of strains that have a characteristic biochemical pattern is called a biovar or a biotype.

Which technique’s is are used to help identify and classify bacteria?

DNA-based approaches used in the identification and classification of species of bacteria include DNA-DNA hybridization, DNA fingerprinting, and DNA sequencing. DNA-DNA hybridization, initially developed in the 1980s, is used to determine the similarity of DNA sequences from different organisms.

Which techniques is used to help identify and classify bacteria quizlet?

List techniques that are used to help identify and classify bacteria. Microscopic examination, culture characteristics, biochemical tests, and nucleic acid analysis.

What part of the E coli T4 phage attaches to the host cell receptors?

randomly bump into the bacteria AND attach to proteins or carbohydrates on the bacterial surface. What part of the E. coli T4 phage attaches to the host cell receptors? Capsid fragments around the nucleic acid.

What is the name of the special structure on macroscopic algae that acts to anchor them arrow )?

Macroscopic algae possess a special structure that acts as an anchor and is commonly called: 1. the stipe.

What is a strain of bacteria?

A strain is a genetic variant or subtype of a microorganism (e.g., a virus, bacterium or fungus). For example, a “flu strain” is a certain biological form of the influenza or “flu” virus. These flu strains are characterized by their differing isoforms of surface proteins.

Why are DNA sequences viewed as evolutionary chronometers?

why can DNA sequences be viewed as evolutionary chronometers? Accumulations of random mutations provide a relative measure of time elapsed since organisms diverged from a common ancestor.

What is 16S Rdna and how is it used to identify species of bacteria?

Because of the complexity of DNA–DNA hybridization, 16S rRNA gene sequencing is used as a tool to identify bacteria at the species level and assist with differentiating between closely related bacterial species [8]. Many clinical laboratories rely on this method to identify unknown pathogenic strains [19].

What are the 3 classifications of bacteria?

There are three basic shapes.

  • Spherical: Bacteria shaped like a ball are called cocci, and a single bacterium is a coccus. Examples include the streptococcus group, responsible for “strep throat.”
  • Rod-shaped: These are known as bacilli (singular bacillus).
  • Spiral: These are known as spirilla (singular spirillus).

Which of the rRNA molecules is most useful for bacterial identification?

16S rRNA or rDNA sequence analysis has become a major tool in the determination of relationships between bacteria, and it is widely used for identification purposes. The resolution offered by the 16S rRNA gene is not high enough to differentiate between closely related species of Psychrobacter, such as P.

What terms refer to bacterial morphology?

They come in four basic shapes: spherical (cocci), rod-shaped (bacilli), arc-shaped (vibrio), and spiral (spirochete) (Figure 1.3(A)).