First we must appreciate that genes do not act in isolation. The genome in which a genotype is found can affect the expression of that genotype, and the environment can affect the phenotype.Not all pairs of alleles will have the same phenotype: dominance when AA = Aa in phenotype, A is dominant, a is recessive.irst we must appreciate that genes do not act in isolation. The genome in which a genotype is found can affect the expression of that genotype, and the environment can affect the phenotype.
Mannitol may also be used for purposes not listed in this medication guide. You should not receive mannitol if you have severe kidney disease, lung swelling or congestion, severe dehydration, bleeding in your brain not caused by surgery, or if your kidneys have already shut down and you are unable to urinate.o make sure mannitol is safe for you, tell your doctor if you have: 1  a history of kidney disease; 2  heart disease; or. 3  an electrolyte imbalance (such as low levels of potassium or magnesium in your blood).
Sulfamethoxazole/trimethoprim is an antibacterial prescription combination medicine approved by the U.S. Food and Drug Administration (FDA) to treat certain infections, such as: 1  Acute exacerbations (worsening) of chronic bronchitis;2  Urinary tract and acute ear infections; 3  Shigellosis; 4  Diarrhea;ulfamethoxazole/trimethoprim can also be used âoff-labelâ to prevent and treat other opportunistic infections of HIV infection. âOff-labelâ use refers to use of an FDA-approved medicine in a manner different from that described on the medicine label.