Answer:
The virus will transfer the DNA encoding cholera toxin to the next bacteria it infects, which will make that bacteria cholera-causing.
Explanation:
The process described in this question is a kind of gene transfer in bacteria called TRANSDUCTION. Transduction is the transfer of fragments of DNA from one bacterium to another via a virus called bacteriophage.
As stated in this question, the virus (bacteriophage) infects a cholera-causing bacterium. The bacteriophage moves from lysogenic cycle to lytic cycle and includes some pieces of the bacterial DNA, which encodes information for making the cholera toxin, in its own genome.
This means that the cholera-making toxin DNA is now a part of the virus's genome and hence, will transfer it to the next bacteria it infects in a process called TRANSDUCTION. This will make that bacteria a cholera causing bacteria.
The small intestines have microvilli in the lining which help to increase the surface area of the small intestines and help to absorb nutrients.
B
Explanation
Sodium Fluoride
Answer:
Scientist 1
Explanation:
<em>The conclusion of scientists 1 is valid.</em>
Human activities such as burning of fossil fuels, agriculture, deforestation, etc. leads to the emission of carbon in the form of carbon dioxide into the atmosphere. <em>An increase in the population of a city will only lead to an increase in these activities and hence, an increase in the amount of carbon emitted into the atmosphere.</em>
Also, volcanic activities leads to the production of volcanic gases which is a mixture of carbon dioxide, oxides of sulfur, nitrogen, etc.
<u>However, an active volcano that is several miles away from the city might not be a major source of carbon in the air above a large city. The carbon dioxide produced from such volcanic activity thins out before reaching the city.</u>
Mycoplasmas differ from other bacteria in that they Lack a cell wall.
Mycoplasmas are different from bacteria as it can cause a wide range of infections and diseases. Mycoplasmas are phenotypically distinguished from other bacteria by their small size and complete absence of a cell wall. Lack of cell wall can be used to separate the mycoplasms from bacteria. It is a genus of bacteria that, like other members of the class Mollicutes, lack a cell wall around their cell membranes. Peptidoglycan is absent. This property makes them naturally resistant to antibiotics that target cell wall synthesis. They can be parasitic or saprotrophic
Learn more about Mycoplasmas on:
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