Exotoxin virulence factor is a substance that directly damages cell membranes or enters cells and changes their function.
Exotoxin- Exotoxins are a class of soluble proteins released by bacteria that enter host cells and catalyze the covalent alteration of one or more components of the host cell in order to change the physiology of the host cell. Exotoxins are produced by both Gram-positive and Gram-negative bacteria.
Bacteria- Microorganisms that are unicellular, capable of autonomous reproduction, and generally free-living are known as bacteria. In nature, bacteria are found everywhere. The foundation of all life on earth, they are architecturally basic but functionally sophisticated creatures.
To know more about the Exotoxin, click on the below link,
brainly.com/question/12986615
#SPJ4
Answer:
A new mutation
Explanation:
A mutation refers to the random changes in the DNA of organisms. A mutation changes the allele and genotype frequencies by the introduction of a new allele in the gene pool.
However, mutations are not the major factor responsible for changes in the gene pool of a population as mutations are rare. The rate of mutations is very slow and does not allow it to serve as a major factor to change the allele and genotype frequencies.
Answer:
Genotype ratio= 1 RW: 1 WW
Phenotype ratio= 1 purple: 1 white
Explanation:
According to the given information, the gene for the color of radishes exhibits incomplete dominance and the heterozygous genotype gives purple color to the radishes. The genotype of the heterozygous parent plant with purple radishes would be "RW". A cross between a purple radish (RW) and a white radish (WW) would give progeny in following ratio=
Genotype ratio= 1 RW: 1 WW
Phenotype ratio= 1 purple: 1 white
Embryonic stem cells !
i hope this helps !
Answer:
community
Explanation:
Community refers to a group of populations of different species that live together in a defined habitat. These species exhibit interdependence for one or other resources. It is a level of the ecological organization just above the population and consists of hundreds of different types of organisms of various species.
Butterflies and flowering plants belong to different species. Butterflies are dependent on these plants for food. Therefore, these two together represent two populations of different species living together in habitat and are an ecological community.
