Indigo has been used as a dye for almost five thousand years, but was not produced synthetically until about a hundred years ago. explain Why?​

Attached earlobes are a reccesive trait in humans. in the tree below, people with attached earlobes are shaded in. which best describes labeled x in the tree? a: a female with one recessive allele b: a female with no recessive allelesc: a male with no recessive allelesd: a male with one recessive allele