This week we are looking at the four macromolecules. One of those is nucleic acids, and DNA is a type of nucleic acid. Read the following article: Your inner Neandertal by Stephen Ornes. Sunday, September 12, 2010
DNA and Ancestry
This week we are looking at the four macromolecules. One of those is nucleic acids, and DNA is a type of nucleic acid. Read the following article: Your inner Neandertal by Stephen Ornes. 
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DNA is a kind of nucleic acid that has coding for all the genes in your body. DNA allows genes to be passed from person to person and without it, there wouldn't be any animals or human beings because the body wouldn't know how to make any of its parts. Neandertals were early humans who lived 300,000 years ago. Studying Neandertal DNA can helps us see whether or not humans and Neanderatls interbred. Scientists looked at Neandertal DNA and compared it to different human's DNA, and concluded that a very small portion of it matched up. This means that some humans and some Neandertals did breed at one point, but it was not very common. We are currently learning about DNA in class, like when we extracted DNA from strawberries. This article helped me understand more about DNA and that it is important to learn about it now to know more about human history.
ReplyDeleteIn this actricle, Neandertal and Modern Humans are connected in some of our blood. They were originated in Europe,Asia and the Middle East. Scientists told us that Neandertal were long gone about 30,000 years ago and that about 1/4 of the blood is Neandertal if you were related by one. Some Scientists found bones that were both neandertal and modern, and believed that they breeded with each other. As, John Hawks said, "It's impossible to talk about them anymore...Neandertalare us."
ReplyDeleteNeandertal DNA continues to live on in some of us contemporary poeple. Tests were conducted wherein scientists concluded that 1 to 4 percent of modern European and Asian DNA originated from the Neandertals. Also, archeological finds in Europe suggest that Neandertals and modern humans interbred as the skeletons found looked like a mixture of the two. A good question would be how come Neandertals and homo sapiens can't be of the same species as they are so alike. After all, "Neandertals are us."
ReplyDeleteDNA is a nucleic acid which carries genetic information in a cell. DNA also is capable of self-replication and synthesis of RNA. DNA does many things, but mainly it tells our body when and which proteins to make. The Neandertals were some of the first human-like creatures to walk the earth and have always been thought to be distantly related to modern-day humans. They lived in a great majority of Europe and parts of Asia. DNA holds the code that makes up each and every one of us. DNA hasn't changed and therefore can be compared to that of Neandertals. DNA is the key to knowing all the things we have in common with/inherited from the Neandertals. Based on what the scientists see in the various peoples DNA they can come to the conclusion that the humans and the Neandertals began to breed after humans left Africa and went to the Middle East. This information, while not exactly new, is proving what many people had thought for a long time.
ReplyDeleteI did my paragraph on the relation of Neadertals and modern day humans.
ReplyDeleteDNA stands for deoxyribonucleic acid. It is found in cells and it carries the genetic information of the organism. DNA's purpose is to carry instructions on how to function, and to replicate itself when needed. Neadertals, or Homo neanderthalensis, lived about 300,000 years ago. According to scientists, they primarily lived in Europe, Asia and the Middle East. They are thought to have walked on two legs and resembled a modern human. The scientists involved in this experiment brought together five different people from around the areas thought to have been traversed by Neadertals. They compared DNA from the Neadertal's bones and from the test subjects and found out that the people from Asia and Europe had some of the same DNA. But, the two people from Africa didn't have any traces of the corresponding DNA. This is how scientists can use DNA to see if there is a correspondence between modern day humans and Neadertals.
DNA is a nucleic acid found in cells, that carries genetic information. Consisting of two long chains of nucleotides, it is capable of replicating its self.
ReplyDeleteThe Neandertals were a species incredibly similar to humans, they first existed 300,000 years ago, long before humans came around. However they vanished off the face of the earth, around 30,000 years ago.Scientist first believed that the Neandertals and humans never mixed but recent discoveries have proved otherwise. The Scientists compared the DNA left in the Neandertals bones to that of people who lived in the area the Neadertals are thought to have once lived. (i.e Europe Asia and the middle east) They also compared it to people who lived in other places believed to be untouched by the Neandertals. They found that the some of the DNA in the living Humans matched that which was taken from the Neandertal bones. However there was no sign of Neandertal DNA in the test subjects taken from Africa. Thus DNA was used to see if indeed the Human race and Neandertals once mixed.
This article was about the Neandertals. The Neandertals were a human-like species that existed around 300,000 years ago. They seem to have walked on 2 legs, and lived in what is now known as the Middle East, Asia, Europe. They vanished 30,000 years ago. DNA is a nucleic acid that stores genetic information in a cell, and is capable of reproducing itself. Scientists have compared the DNA of a bone belonging to a Neandertal to the DNA of 5 people from China, France, Papua New Guinea, southern Africa and western Africa. Surprisingly, 2 people from Africa didn't have any Neandertal DNA, but people from China and Papua New Guinea had the same amount of Neandertal DNA as the people from Europe. The DNA was used to compare Neandertals to Humans. This relates to what we are learning by the relation of DNA, and how it carries genetic information. It also related to what we learned by showing one example of how scientist set up an experiment. Overall, I learned a lot from this article.
ReplyDeleteIn this article it is discussed that we have Neanderthal genes in us. I actually believe that we might because in the article its talks about so many geneticists finding similar result. They believed that the Neanderthals first lived in Europe, Asia, and The Middle East around 300,000 years ago but humans have only lived for about 250,000 years. The article popped a question in my mind. My question was ¿ Is it possible that there there is only one kind of animal and that we are a product of evolution from the Neanderthals? DNA is deoxyribonucleic acid, DNA stores the information that makes us look the way we do and it stores the "recipe" of how to make proteins. I always thought that the Neanderthals were the first humans. The DNA of the Neanderthals is found in bones found in parts of Asia and Europe.
ReplyDeleteDNA is a nucleic acid called deoxyribonucleic acid. It carries the genetic information in the cell and is capable of self-replication and synthesis of RNA. The Neandertal's are ancient members of the human family tree, now extinct. Scientifically, they are called Homo Neanderthalensis. Neandertal's, although they are now extinct, are being studied by researchers because it is in their bones. Research shows that the genetic material of Neandertal's is in 1 of every 4 modern people living in Europe and Asia.
ReplyDeleteMiles C
DNA carries Genetic information consisting of tow long chains of nucleotides it is capable of cloning itself.Neandertals are very close to the humans and existed 300,000 years ago and vanished. Scientists tested the DNA of the neandetals bones and found a similar match to modern humans. They also found that most humans today carry the DNA of past neandertals.This article was very interesting and Its interesting to knwo that 1/4th of every moder people living in eurasia ( euorpe and asian) have genetic materials the same as neandertals
ReplyDeleteDeoxyribonucleic acid, or DNA, is a nucleic acid found in all living things. It is a long code of genetic materials that tells cells what to do and when. Neanderthals are a separate species of humans that lived a 300,000 years ago, and went extinct around the time the modern human showed up. The way that geneticists today have tracked our ancestry to them is by finding the DNA in old Neanderthal bones, and then comparing it to the genetic material within our own cells, looking for matches.
ReplyDeleteDNA is a nucleic acid which are found in cells. It stores and transmits hereditary or genetic information. In the article, it talked about the Neandertals (Homo neanderthalensis), which are now extinct. The Neandertals' was an ancient member of the human family tree. Recent studies show that 1 to 4 percent of the DNA in modern people from Europe and Asia came from the Neandertals. Scientists are learning more about the Neandertals by studying the genetic information left behind in their bones. The DNA showed that the members of the 2 species had mated and produced an offspring.
ReplyDeleteThe information I learned in this article helped me understand the importance of DNA and what it can reveal about the past. I'm curious to learn more about what DNA can uncover!
Sabrina L, 7th period
DNA, short for deoxyribonucleic acid, is a type of nucleic acid that carries the information of genes throughout an organism. It is capable of self-replication and synthesis of RNA. According to this article, Neandertals are related to humans and may have been closer bred then we think. Neandertals are are an extinct species of human ancestors that we may have been closely related to. By having researchers evaluate and study the DNA of Neandertals from their skeletal remains and compare it with the DNA of modern humans we can learn about the degree of relationship, the progression of human development, and evolution. Therefore, someday we may find Neandertals and humans were closer than we thought.
ReplyDeleteDeoxyribonucleic acid, abbreviated as DNA, is a nucleic acid. It carries genetic information in the cell and is also able to self replicate its self and synthesis of RNA. DNA includes two long chains of nucleotides twisted into a double helix. DNA is very important to finding more about Neandertals because the sequence of nucleotides in DNA determines individual hereditary characteristics. Homo neanderthalensis, or otherwise known as Neandertals, are now extinct. They were are thought to be the start of the human species and appeared about 300,000 years ago. To put that in perspective, modern humans appeared about 200,000 to 250,000 years ago. They are thought to have walked on two legs and lived in modern day Europe, Asia and middle east until they disappeared 30,000 years ago. According to a study, 1 to 4 percent of the DNA in modern people from Europe and Asia came from the Neandertals. In a new study, researchers investigated ancient bones to compare the genetic material of Neandertals to genetic material in contemporary people (Homo sapiens). They realized that there was a small trace of Neandertal DNA in human DNA.
ReplyDeleteDNA is a type of nucleic acid, one of the four macro molecules. DNA stores information and genetic codes saying how to build an organism. The article is about how we might be related to Neanderthals. Before, genetics suggested that neanderthals were totally different than early modern humans. Now, however, 1-4 percent of European's and Asian's are thought to have come from neanderthals. This may seem small, but it is a big step in genetics. Scientists found this out by using genetic material from bones found in a Croatian cave, and compared it with modern human's DNA. Now, we know we are not to far from neanderthals after all.
ReplyDeleteDNA is a nucleic acid that is the building blocks of life meaning all living organisms have DNA. DNA also can be transferred from human through human which is how thing produce and make more things. Neanderthals live quite some time ago so I don't exactly know why we would want to study their DNA but I guess It can be used to see who they were and If the every mixed bred. I personally think the Neanderthals obviously bred because other wise they would have been gone in a flash and they were around for some time so they knew what they were doing. This article made me understand better the uses of DNA I figured out that through tracing DNA you can find long lost unknown relatives just by what your made up of. Pretty cool Stuff.
ReplyDelete