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).
For information on how mannitol salt agar is used to determine mannitol fermentation for bacteria able to grow on 7.5% NaCl, or on how mannitol fermentation is determined using phenol red mannitol broth, refer to the mannitol fermentation test.annitol salt agar is thus selective in prohibiting the growth of bacteria unable to tolerate 7.5% NaCl and differential in the use of mannitol by those that can grow.