D. Genes
2. Why do we have different cells in our
bodies if every cell has the same DNA?
a. Gene expression
b. Protein synthesis
c. Meiosis
d. Mitosis

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