Monarch butterflies have brightly colored orange wings with black patterns on them, making them easily visible to birds that eat butterflies and moths, yet birds rarely eat the monarchs. Likewise, the monarch caterpillars are brightly striped yellow and white and black, and they also are rarely eaten by birds, although some wasps will attack them and feed them to their young. What can be inferred from these observations?\

We can infer that Monarch caterpillars and Monarch butterflies are look-alike mimics. They mimic other species that taste bad to predators, such as birds, so they can protect themselves. Their common color pattern advertises that they both have a bad taste.

this protocol provides a detailed procedure for agarose-based ip to purify and enrich the protein of interest.

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.