Here we go class...!

Genetic mutations. Have you herd of that? I haven't either..
NOO im kidding. Take a look at this video so you can get a clear perspective on what im talking about...
http://sciencestage.com/v/1299/dna-mutation.html

Genetic mutations are changes in the nucleotide sequence of the genetic material which are usually caused by copying errors during replication that lead to base substitution, insertion, or deletion of one or more base pairs. Genetic mutations may be triggered by exposure to ultraviolet or ionizing radiation, chemical mutagens, or can occur deliberately under cellular control during processes such as hypermutation. Did you know drug resistance can be part of a genetic mutation?

Below you will see the different types of mutations...

Substitution: A type of point mutation where a single nucleotide is substituted with a different nucleotide that may result in an altered sequence of amino acid during translation.

Insertion: A type of mutation resulting from the adding of extra nucleotides in a DNA sequence or chromosome.

Deletion: Pretty much the same thing except its deleting nucleotides causing the DNA sequence to shift.

An example for mutations please meet the Elephant Man...

       When he was two years old, his mother just started to notice the changes to his body. Joseph Merrick started forming darker skin spots, lighter skin spots that began to look bumpy and rough. Those bumps began to grow and spread throughout his body [chest, neck, and the back of his head]. While he was growing up his mom continued worrying, the other boys started making fun of him, and he kept looking stranger. His arm was at the point where it was un-useful and the right side of his head was about 4 times the size it should have been. Over the next years he tried to work in a factory, but the workers abused him and he ended up being in a freak show [circus]. Joseph Merrick was just like any other human being, but with many more flaws in life. Like everyone else, he wanted to be ordinary. He also wished he could be like everyone else and lay down to sleep, but due to his over sized head he had to sleep sitting up. One morning in 1890 he was found lying down dead. The weight of his head had crushed his windpipe and he suffocated. He was then but 28 years old.


         So as you can see genetic mutations aren't good and we should be thankful enough that we are who we are. Thank you for your time and a will be back soon.