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What is an effector strain of bacteria?
An effector strain of bacteria is a strain that has the ability to produce and secrete specific proteins or molecules called effectors, which can manipulate host cells or immune responses to benefit the bacterium. These effectors can help the bacterium evade host defenses, establish infection, and promote survival within the host.
What are two ways that rough bacteria differ from smooth bacteria?
Streptococcus pneumoniae bacteria is found in two types: a type III-S (smooth) and type II-R (rough) strain. The smooth strain covers itself with a polysaccharide capsule that protects it from the host's immune system, resulting in the death of the host, while the II-R strain doesn't have that protective capsule and is defeated by the host's immune system.The smooth type has a "coat" that prevents it from attacks from the host's immune system and it is very virulent.
What is the S strain of bacteria about the cause disease in animals but a R strain is not?
The S strain of bacteria is virulent due to its ability to produce a protective capsule that helps it evade the host's immune system, allowing it to cause disease in animals. In contrast, the R strain lacks this capsule and is non-virulent, meaning it cannot effectively evade the immune response and does not cause disease. This difference in pathogenicity is a key factor in understanding bacterial infections and their effects on host organisms.
How do you form clones in biotechnology?
By using various molecular tools such as enzymes, vectors and host strain we can make clones.
Are the terms narrow host range and broad host range used to describe effects at the bacterial family genus species or strain level?
This means that a bacteria may affect one or a few species such as humans and other primates making this a narrow host range. Or the bacteria could affect all mammals and affect a broad host range. Using family, genus, species or strain could cover both narrow or broad host range. Most of the time, it is at the species level.
Why is an s strain of bacteria able to cause disease in mammals but a r strain is not?
An S strain of bacteria has a capsule that protects it from the host's immune system, allowing it to cause disease. In contrast, an R strain lacks this protective capsule, making it more vulnerable to the immune system and less able to cause disease.
What is an ergonominc keyboard?
An ergonomic keyboard is a computer keyboard designed with ergonomic considerations to minimize muscle strain and a host of related problems.
When an F plasmid integrates into the host chromosome what is the strain referred to as?
When an F plasmid integrates into the host chromosome, the strain is referred to as an Hfr (high frequency of recombination) strain. This integration allows the F plasmid to facilitate the transfer of chromosomal genes during conjugation, leading to increased genetic diversity among bacterial populations. Hfr strains are significant in genetic studies and mapping of bacterial genes due to their ability to transfer chromosomal DNA to recipient cells.
The s strain and the r strain of S pneumoniae are different in that?
The S strain produces a capsule but the R strain does not
What are the three types of strain?
The three types of strain are tensile strain, compressive strain, and shear strain. Tensile strain occurs when an object is stretched, compressive strain occurs when an object is compressed, and shear strain occurs when two parts of an object slide past each other in opposite directions.
What is strain and equivalent strain?
There are 6 vectors used to describe the strain field of an element. An equivalent strain is just a single numerical value used to represent the strain field.
What is strain to failure?
strain-to-failure
