In order to classify a mineral, scientists will sometimes scratch the mineral with a piece of unglazed porcelain and then analyze the color of the powder that this produces. which property does this test analyze?

a. hardness
b. fracture
c. luster
d. streak

In pea plants, yellow seed color (y) is dominant and green seed color (y) is recessive. based on the punnett squares, what are the chances that the offspring in the second generation will have green seeds? first generation y y y yy yy y yy yy second generation y y y yy yy y yy yy there is a % chance that the offspring will have green seeds.