Give a specific example of how the introduction of a gene into a bacterium can change the phenotype of the bacterium. also explain the specific role of the protein expressed by the gene in changing the bacterium's phenotype.

A good example to illustrate this case is the introduction of resistance genes into bacterial DNA.

If, initially, we have a bacteria sensitive to a given antibiotic, and we transfer to him a gene that will allow it to resist this antibiotic with the help of other bacteria by means of plasmid, the bacterium will acquire resistance against this antibiotic. antibiotic and its phenotype will be changed in the antibiogram.

The protein encoded by the gene will block the activity of the antibiotic, it may be an enzyme that will lyse the antibiotic or a pore that will reject the antibiotic molecule to the outside of the cell ...

step 1 ammonium can be absorbed by plants, but some is converted into nitrates which are better for plants to absorb. this is called nitrification. 2. step 2 the deer eats the plants and uses the nitrogen-containing proteins for cell growth. 3. step 3 bacteria in the soil conduct nitrogen fixation to convert nitrogen gas from the atmosphere into ammonium. 4. step 4 some of the nitrates are absorbed back into plants, but denitrification breaks down the nitrates into nitrogen gas released back into the atmosphere. 5. step 5 nitrogen is found in the urine, which gets broken down into ammonium through the process of ammonification. 6. step 6 plants absorb the ammonium and begin assimilation, the process to add the nitrogen to protein.

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;