Hi. Amount of light, temperature, waters presence and quantity, etc.
2007-06-25 12:05:24
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answer #1
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answered by Cirric 7
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Depends on the organism. In bacteria, things like temperature, salt/metal concentration, etc. can influence gene expression. For organisms like humans, factors like altitude changes and amount of sunlight can affect how genes are expressed.
2007-06-25 12:14:49
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answer #2
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answered by Joy 2
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each and each organisms has a genotype. In human beings it is the set of 25,000 genes we inventory that code for the embryo to strengthen and alter right into a mature grownup. each and each organism receives 2 alleles in step with gene out of all possible alleles there are for each and each gene. to illustrate blood variety has 3 alleles A, B, and O. each and all of us inherits maximum effective 2 of the three possible. The phenotype are the gene's alleles which would be energetic and adjust probably the main organism's measurable variations: top, weight, shade, cost of metabolism or blood form. If the guy or woman receives A O then they have a phenotype of A provided that the O doe not adjust the phenotype. If one in each of a gene's alleles will on no account be expressed interior the phenotype it makes no replace to the guy's habit or seem yet it would desire to in a extra era. In one extra era the O allele could pair with one extra O.
2016-09-28 11:04:33
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answer #3
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answered by keva 4
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Diet. Our body tries to regulate the amount of cholesterol in our bloodstream. An abundance of cholesterol in our diet can downregulate the production of cholesterol in the liver. It can happen in reverse as well. This is why a cocktail of drugs are given to patients who need to drastically change the amount of cholesterol in their bloodstream. One drug to reduce the uptake of cholesterol in our gastrointestinal system, and one to reduce the hepatic production of cholesterol.
2007-06-25 12:18:30
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answer #4
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answered by Trevin M 2
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