Mutations Essay

681 WordsDec 12, 20113 Pages
Option #1 – Research a real-life mutation and create a mini-poster on it ------------------------------------------------------------------------------------------------------------------------------------------ A three-year-old Michigan boy is super-strong. He can move furniture, hold five-pound weights, and do sit-ups with ease. Liam Hoekstra likely has a condition called myostatin-related muscle hypertrophy, which means his body has very little fat and enlarged muscle fibers that make him exceptionally strong. Because Hoekstra is so strong — he falls, for instance, without getting hurt – he is not learning the appropriate fear judgment of a child testing his or her limits. ------------------------------------------------------------------------------------------------------------------------------------------ What is myostatin-related muscle hypertrophy? Myostatin-related muscle hypertrophy is a rare condition characterized by reduced body fat and increased muscle size. Affected individuals have up to twice the usual amount of muscle mass in their bodies. They also tend to have increased muscle strength. Myostatin-related muscle hypertrophy is not known to cause any medical problems, and affected individuals are intellectually normal. How common is myostatin-related muscle hypertrophy? The prevalence of this condition is unknown. What genes are related to myostatin-related muscle hypertrophy? Mutations in the MSTN gene cause myostatin-related muscle hypertrophy. The MSTN gene provides instructions for making a protein called myostatin, which is active in muscles used for movement (skeletal muscles) both before and after birth. This protein normally restrains muscle growth, ensuring that muscles do not grow too large. Mutations that reduce the production of functional myostatin lead to an overgrowth of muscle tissue. Read more about the MSTN gene. How do

More about Mutations Essay

Open Document