Gel electrophoresis is not used for:
a. analysis of gene expression
b. analysis of dna fragments according to their sizes
c. analysis of patterns created with restriction enzymes
d. analysis of pcr products

Immature bone cells, or osteoblasts, manufacture a protein called osteoid as well as several hormones. because of this, we would expect osteoblasts to contain numerous a) nuclei. b) ribosomes. c) lysosomes. d) golgi bodies.