GTP is necessary to produce an aminoacyl tRNA

Exon Junction Complexes are attached to mRNA in the nucleus and then removed in the cytoplasm.

Diffusion of molecules is not used at all in signaling via action potentials.

A core of eight histone proteins with DNA wrapped around it is called

When examining a five-carbon sugar to determine if it is ribose or deoxyribose, one looks to see if there are two H on the ________ carbon in the structure.

Polar microtubules connect to kinetochores during mitosis

Intermediate filaments are the only major cytoskeletal components not formed from globular proteins.  

The appearance that the spindle and sister chromatids are inactive at metaphase is misleading because

Which of the following correctly orders the stages of mitosis?

You identify an enzyme capable of breaking a single strand of a DNA molecule, passing the unbroken strand through the gap, and reattaching the original strand. What family of enzymes does it belong to?