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Art [367]
4 years ago
11

By scratching a mineral with various substances, scientists are able to determine the mineral's

Biology
1 answer:
svlad2 [7]4 years ago
5 0
Hardness. You can either scratch it or use another known mineral or object to see if it becomes scratched. 
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For example, human skin color is a polygenic trait. The final phenotype depends on the total number of dominant alleles of all the genes that regulate the skin color in human.  

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