Friday, November 9, 2007

Genetic Drift


My name is David Merschbrock. I am really into drama and I love to sing and act. I love to make people happy and make people laugh. As i grow up I hope to go into an actual job in acting or singing proffesionally. It has always been a dream of mine.
I would like to grow up and become the best singer, acter, and father that i can possibly be.


Genetic Drift is when an animal changes appearance in order to lice without being harmed. For example if there are three green bugs and three brown bugs, the human is going to smash the brown ones because they are a lot more noticeable in the grassy areas. If the brown bugs are the only ones that die then the green bugs would be able to keep multiplying without getting killed. Because of this the animals are able to have the best jeans possible because all of the bad ones are destroyed. This gives the best advantage to the prey because they are now able to hide without being harmed. This is one of the three main ways that evolution takes place. The only bad thing about the genealogy of this process is that the animals just like any other animals have a way to put jeans from years and years back into their offspring. This is natural in every animal. It is even the same with humans. If you ever wonder how two parents with black hair can have offspring with blonde hair it is because of this process. Genetics are always random and are never able to perfectly track and change. It is impossible for anyone to guess the jeans of another without making any mistakes. After every generation of change it gets more and more likely that the jeans will stay the same as parents but it is never one-hundred percent sure.
Some animals are not even given the right jeans to be able to live. At birth if the jeans of the animal are not correct it will simply never hatch or it will hatch but will not live more then an hour. Take a chicken for instance, if a chicken does not have the right jeans needed at birth it will not have the strength to crack the egg shell open. This fact helps keep the jeans that are not meant to stay from spreading to even more animals. If an animal has a jean that is not good to have and manages to live the animal is able to pass that jean on and therefore creating even more offspring that have the wrong jeans needed to live a full life.
In some cases the animals will notice the changes taking place in the jean pool and will take a little group of their species and will leave the rest and go to a place were there are no more of that particular species. Do to this group leaving they are not able to take in the jeans that are bad. They will only be able to take the jeans from each other that they see as good. When the group of that species has grown too big for the group of land that they settled in they will spread back out in an attempt to spread out the good jeans again. If the group manages to spread out the good jeans again then the process will start over, but if they fail then when enough have died off the species will once again leave the main population and will take a small group and do the same thing.

This kind of evolution is in a lot of ways just like natural selection. They both do not come naturally to isolated groups of animals. They both have a major effect when it comes to control over the population of animal. It is very uncommon for this technique to not control the population of an animal in a certain place. For this process to work the prey and the predator both have to have this going on at around the same time. If they both do not have this going at the same time it can risk over having an over population and that would not be a very good thing if it stays over populated for to long.
Sometimes due to this happening the jeans of a not so healthy or strong animal end up getting spread to offspring and the good jeans end up getting taken away for good. This is not a very good thing when it comes to the survival of a species. When this happens in order to get the original jeans needed back most of the animals that have the bad jeans have to die off and the couple left with the good jeans have the breed faster then ever before. If most of the animals of that species die off, it would be pretty easy to see that it would of course take longer to recreate the original species then it did to get it were it was one-hundred years before.
This process can be simulated with a simple process that you might already know. This process is known as the heads and tails process. It is as simple as flipping a coin and counting the amount of times it lands on heads or tails. This is a very good way to simulate this process because it is just like it in many ways, such as: the coin is different in two different ways, the outcome is anonymous, and it can be seen what the outcome is. If you have ever done this project you should know that the outcome is never the same. It is always different no matter how many times you do it. This is the same in every day life. The outcome is always different. This explains how hard it really is to get rid of and recreate an entire species from scratch.
As told before by many scientists and zoologist this process happens in every day life no matter what we do to prevent it. This happens to every species every day. This is happening somewhere right now as you read about it. Somewhere in this world right now something is changing with a species, whether it is changing its jeans or just changing its hair color, it is happening every minute of every day.

2 comments:

North Naturalists said...

Well well David whos on what end of the bargain now?
First off some small spelling errors in the first paragraph about you.
Missing the 5 links
You could have gone on about the every minute of every day of every second but...that's just a joke over all nicely done.

I have spoken,
Geoff D. Levario

sdawson411 said...

I think you did really well putting your essay together, but maybe you might need a few more examples over genetic drift. and there are some grammar mistakes but its very good.

-sierra cunningham