Question

Even though each body cell in an individual contains the same DNA, the functions of muscle cells and liver cells are not the same because

A) liver cells use different genes than muscle cells

B) liver tissue develops before muscle tissue

C) liver cells produce more oxygen than muscle cell

D) mutations usually occur in genes when muscle cells divide

Answer 1

The correct answer is option A, liver cells use different genes than muscle cells

The nucleotide sequences represents the gene coding which is different in each individual and its body parts. Genes are basically the building blocks of DNA, which code for specific polypeptide.  

Since the coding is unique in each gene, the traits expressed or the functions performed by any body organ is different than the function performed by other body organ though they are made up of same cells.