Which characteristic is common to all minerals? a. they have an amorphous structure. b. they are inorganic. c. they have the same chemical compositions. d. they are man-made.

Guinea pig coat color is determined by a single gene. the allele for black coat color is dominant to brown. in a cross between twoblack-haired guinea pigs, 20 offspring are born. if both parents were heterozygous, probability would predict that approximately howmany of the 20 offspring would have brown hair?