Question:Procedure 1. Begin by examining muscles found in the upper limbs. First, extend your forearm so you have a clear view of your hand. What muscle is required to perform this extension? Extend your fingers out so they are straight and splayed apart. Then, retract your fingers into a tight […]

South Mountain Park in Phoenix, AZ, is the largest city park in the US. Among other fancy things, it is notable for its population of Chuckwallas, with the highest density reported. Unique to this population is the male phenotype with orange tails. South Mountain can sometimes be viewed as an […]

How did Santiago Ramon y Cajal (1906) famous neuroanatomical drawings of the nervous system contribute to our current understanding of the cellular wiring of the nervous system? A. Distinguish the morphological difference between neurons and glia and list their respective classifications based on morphology or shape. B. Which glia are […]

Q1. The functional lac repressor is a homoteramer. Still, the X-ray structure of lac repressor bound to the lac operator sequence centered at +11 reveals that the two half sites that constitute the complete operator sequence with two-fold rotational symmetry are each bound by a monomeric subunit of the repressor. […]