Review the videos below on the steps of muscle contraction: 1) Events at the neuromuscular junction 2) Excitation-contraction coupling 3) Crossbridge cycle These videos illustrate the steps that occur for skeletal muscle cells, which are very similar to cardiac, heart, muscle cells which contract in a very similar way. 1 […]

DNA typing is a catch-all term for a wide range of methods for studying genetic variations. According to DNA Typing, each method has its own advantages and limitations and each is a t a different state of technical development (National Academics Press, 1992, pg. 51). However, each DNA typing method […]

Color Blindness Project People who are colorblind may be unable to distinguish between the colors of the attach slide. Sex-linked genes are found only on the X or only on the Y chromosomes. • A color-blind man (cY) will pass his defective allele only to his daughters because only his […]

An experimenter extracts and purifies act in filaments from ananimal cell. Using an appropriate visualization technique, herealizes that some actin filaments are very stable, somedepolymerize rapidly, and some depolymerize slowly. What could be aplausible reason for explaining the slow depolymerization of someof the filaments? a) The filaments are capped at […]