The role of in the cell membrane is to add flexibility to the membrane 1.cholesterol
2.lipid bilayer
3.marker proteins
4.channel proteins

2 i think

Explanation:

i'm gonna put a couple so you can chose from

explanation:

if you know the fur color of the offspring mice, you can use the ratios to identify the genotypes of the parents.

if either parent mouse passes a dominant allele, the offspring will have black fur.

if the parental mice has two different fur color (i.e white and black) , the color of the offspring's fur would be either black, white, or the combination of both (grey)

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the answer you are looking for is the united states forest service.

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