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viktelen [127]
4 years ago
12

Rocks can best be identified by their hardness mineral content color grain

Biology
1 answer:
34kurt4 years ago
3 0
<span>Rocks can best be identified by their mineral content. This is because rocks are composed of one or multiple numbers of minerals. Quartz, calcite, feldspars, and micas are examples of minerals that make rock formations possible.

Rocks are the basic component of the Earth's crust. Mountains, hills, and volcanoes are examples of rock formations that occur through time on Earth. One can find rocks all over the Earth and most are usually under the soil. Rocks can be further classified as igneous, sedimentary, or metamorphic rocks.</span>
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Answer:

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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.

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