Monday, January 05, 2009

Weekly Science Article Report - Reproduction - Period 6


Here is the place to post your Weekly Science Article Report for this week.
Remember that for this one, you will be finding an article that relates in some way to reproduction.
Possible topics include:
  • Stem Cells
  • Cloning
  • Regeneration
  • Grafting
Or find something that you really are interested in.

For a reminder, here's what to do for this assignment:
1) Citation: Here you will put the name of the article, the author, and where you found it (for example, the New York Times or Science News for Kids).
2) A brief summary: Here you will summarize the article in one or two sentences. This is to give your readers (including me) a sense of what you have read.
3) Reflection: This is the biggest part of your report. I am interested in your response to the article. Please address the following questions in your reflection:
a) What did you think about the article? Did you like it or not? Why?
b) What interested you or surprised you about the article?
c) What questions do you have about what you read? What would you like to know more about what you’ve read?

Your report is due Friday here on the blog.

By Monday, you will post comments on the work of three other students. Your comments should include:
1) One thing you appreciated/liked about their report - something you think they did well.
2) One suggestion you have for how they might improve their work in the future.
As always, I look forward to reading your work.

Your report is due by Friday, January 9. Your comments on the work of 3 other students is due by Monday, January 12.

51 comments:

Anonymous said...

The Giant Squid


For the humans, animals, and plants to continue surviving, it is nessasary that mature adults are capable of producing offspring to continue the existance of the species and pass on genetic information from generation to generation. the artice that i read was about squid and how the reproduce. what i found very interisting was that squids dont let out a lot of spearm all at once or even over a long period of time. scientist can prove this because there has not been a lot or spearm colected in the waters where they live

Anonymous said...

woops i know i spelt sprem wrong

Anonymous said...

The article I chose to read is called, How Cloning Works by Craig Freudenrich. This article is about cloning animals. It states that it is possible to save endangered species through cloning. The definition of cloning is making a genetically identical organism through nonsexual means. What I found interesting about this article is that the first clone ever discovered was of a baby bull gaur. I learned a lot about cloning from this article and I really liked it. One question that I have about cloning is, is the cloning process still being used today? If so, how often?

Anonymous said...

Dear bummblebee401k,
Your article sounds really interesting. I never knew that squids dont let out a lot of sperm all at once or even over a long period of time. You did a really good job ! The only thing I would work on is to put questions in if you have any. But overall you did really well !

Anonymous said...

Dear Love Pinkx3:

what i thought about your artice was that it was very intersting because i really never knew what the first animal they ever cloned was. i liked how you explained the facts and gave an opinon

Anonymous said...

Article name: Cloning
Formby News


I think that this article was a very cool article in a lot of ways. The reason for my opinion of this is because that I could never imagine a living thing or even a dead object being able to get cloned. In the article I read the Japanese were the first to figure out how to clone object. The things they learned how to clone were 16 year old mice. They made the exact same thing as the 16 year old mice except the cloned version wasn’t dead. I thought that would be really cool to be able to clone one of your old pets and be able to live a long life all over again with them again.

Anonymous said...

Dear bummblebee401k
I thought your article was good because I never knew that squids didnt use alot of sperm to reproduce. Also next time maybe give a little more info in ur article,good job!

Anonymous said...

Dear Love Pinkx3:
I thought your article was really cool because I justed learned to about how sciencetists found out how to clone objects,Good Job!

Anonymous said...

dear Megatron401k,
I think that the article you chose is very interesting. You chose the same topic as me ! I agree with you that it would be cool to be able to clone one of your old pets and be able to live a long life all over again with them again. The only thing I would try to work on is adding in some questions just so that you can meet all the requirements for the blog. But you did really well !

C. Smith said...
This comment has been removed by the author.
C. Smith said...

The article I read was in New York Science named Beating Hurdles, Scientists Clone a Dog For a First, by Gina Kolata. I learned that in August, 2005, South Korean researchers cloned a male Afgahn dog for the very first time. It took almost 3 years, 1,095 eggs from 122 dogs to clone the dog. The dog was cloned by removing the genetic material from the eggs and replacing it with skin cells from the ears of Afgahn hounds. When the changed eggs were starting to turn into embryos, the researchers sedated the surrogate dog and put the eggs into the dog's oviduct. The eggs would have to grow into early embroyos, go into the uterus and live. The researchers had less than 4 hours to get the eggs into the dog. One thing I found interesting is that it is harder to clone a dog than a cat because the dog's reproductive biology is really hard to figure out. One researcher spent 7 years and over $19 million and still couldn't clone a dog. A question I have is how long will it take researchers to acutally clone a person?

Anonymous said...

Dear Tcxmon,
I liked your article. The reason Iliked it was because that I did the same topic and thought it was really cool that sciencetists found out how to clone objects. The only thing I would say to fix is asking more questions in ur article, good job.

Anonymous said...

dear Tcxmon,
I thought your article sounded really interesting. I never knew that it would take that long to clone a dog. You did really well! keep up the good work (:

Anonymous said...

The article I read was really interesting! The name of the article is called double takes. The url to gt to this atricle is http://www.nationalgeographic.com/ngkids/9909/dna/intro.html.

This article was basically about cloning and what animals were succesfully cloned. It tells me about cloning and the cells.

I liked this article. It was not complicated and clear to understand. I liked the pictures in this article because I got a visualization of what the article was talking about. I thought it was very interesting how cloning bgan in the 1960s with frogs! I thought it was also interesting how a guy cloned a lamb from an adult cell! I dont really have any questions and I think people who are interested in cloning should read this article.

Anonymous said...

the article i read was about asexual reproduction. what i learnde is that asexual reproduction does not involv mitosis, or firtilization. only one parent is needed for asexual reproduction.the article said that it was highly rare for a multicellular spechies to lack the reproduction rate needed to keep there kind alive.

Anonymous said...

How Cloning Works.
By Craig Freudenrich.

The article I read was How Cloning Works. It talks about the first clone of an endangered species, a baby bull gaur. I thought the article was very interesting because it talked about cloning a sheep in 1997, and it talked about scientist cloning other animals too. I found it surprising about how they clone animals, it seems really hard. It showed a video of the sheep that got cloned, and it showed how they clone animals. It was really cool. I have one question, What other animals have they cloned before?

xoxo Pinkbabex5 (:

Anonymous said...

I read an article on how cloning is followed through. i found the article at HowStuffWorks.com. Basically what i got from the article, was cloning is making an exact duplicate of the object ( in this case, an endangered bull named Noah). i thought that the whole idea of cloning is awesome and crazy. the article spoke of saving endangered animals by cloning. After i read it, i wanted to see more so i looked up Dolly, the cloned lama, and basically the same thing happened there except that her kind are not endangered. i thought the article could use some more detail, but other then that it was good. not something that i would tell some one who wanted to go more into depth about. at first, i thought it was just going to be about cloning but then it ( the article ) went into how it could help endangered animals and that was the hight of the passage, thats when i was most interested. I only have one question, and thats has there ever been a death related to cloning, and what could scientists do to prevent that from happening again?

Anonymous said...

I read an article about human reproduction in a times magazine. It talked about the journey of the sperm and how it has to get passed the women’s immune system and acids. I liked the article because I learned a lot of things like the sperm have to go the equivalent of more than half a mile to get to an egg. I liked how it tells you what happens to a sperm once it is in a woman. Can a fertilized egg not get developed like if it is flushed out of the uterus like all the undeveloped eggs are?

Anonymous said...

Artcle: Stem Cells FAQs
found: http: //www .cbc.ca /health/st ory/2009/0 1/07/f-stemcells.html.

people think stem cells are cells that in a blank state or have not been "specialized" yet. They're in a very early stage of life and have the ability to become any type of cells. skin, bones, organs or other body parts included.
Stem cells could be used for repairing tissue to treating diseases like Parkinson's Disease and Alzheimer's disease. This article was very interesting to me because I thought that stem cells were used for cloning, but now I learned that they could be used for repairing tissue.

Anonymous said...

The article I read was “From Stem Cell to Any Cell” by Emily Sohn. I found the article on www.sciencenewsforkids.org. It is about stem cells and how to collect the cells and make them grow. Scientists have learned how to mix stem cells with combinations of proteins to grow new cells. The scientists hope to grow different types of cells to cure diseases and injuries.
Some examples the article talked about was growing new bone cells that could be injected into weak bones and maybe making cells to help heal spinal cord injuries. I though this article was very interesting. Even reading about the stages the cells have and how stem cells can help some illnesses made me want to keep reading to learn more.

Anonymous said...

Animal Clones: Double Trouble?
by: Emily Sohn
www.sciencenewsforkids.org

This article is about how cloning works/the process, how the cloned animals die young, and how scientists think their milk and meat are safe.

I thought this article was very interesting. I liked this article a lot. I thought it was very informative and easy to understand. The part of this article that i thought was interesting was that the cloned animals live a shorter life than the original animal. It said there was a sheep that died at age 6 when most sheep live to be double that age. Scientists have cloned 11 animals so far. I think cloning is good, because maybe animals won't die out and become extinct now. The only problem is, is that they are dying young. My questions are how long does it take to clone an animal?

Anonymous said...

Dear purpleheart36,
I thought your article report was really interesting!
One way you could improve it is by spacing out the three parts so it's more organized.

Dear Lovepinkx3,
I really liked your article report. It was very informative and i never knew that was the first animal cloned!

Dear Pinkbabex5,
I really liked your article report, my article seems very similar! One way you can improve is saying where you got the article.

=]

Anonymous said...

this is to anonymous: i liked the acid part, because i really didnt know that the sperm had to travle through acid. and i also liked your choice, time magizine, i like time magizine.

Anonymous said...

The article I chose to read was called “Reproductive Cloning.”
(http://www.ornl.gov/sci/techresources/Human_Genome/elsi/cloning.shtml) The article talked about how reproductive cloning is a technology used to generate an animal that has the same nuclear DNA as another currently or previously existing animal. It gave an example of Dolly, the first mammal (a sheep in this case) to be cloned from adult DNA. Also, the article explains what "somatic cell nuclear transfer" (SCNT) is. I thought the article I chose was alright. It gave me a lot of information but some of which was confusing to me. I was surprised that Dolly was a successful clone. Dolly the sheep that was a clone, was suffering of crippling arthritis and lung cancer prior to her death in 2003. I wonder if the sheep she was cloned from also had these troubles, and that is what killed Dolly? The sheep Dolly got cloned from died several years prior to her creation.

Anonymous said...

volleyball24, i was wondering how cloning could effect animals, because i read an article and it didnt say any thing about the animals being hurt. thanks for that

Anonymous said...

tcxmon; i didnt know that cloning took up to 3 years!!! thats along time to be working. well, thanks for pointing that out.

Anonymous said...

Dear LovePinkx3,

I really liked your question and I wonder the same thing also. Your report was well said. Maybe make your report a little longer next time.

Anonymous said...

Dear volleyball24,

I liked your essay alot. It was really informative and well panned.

Anonymous said...

Dear Megatron401k,

I liekd your essay. Make it longer or put more information in it.

Anonymous said...

Q and A Stem Cells
BBC News
http://news.bbc.co.uk/2/hi/health/4562235.stm
Author: Unknown

Most human cells have one main purpose that cannot change. But stem cells are different. They are still in the early stage of developement and can be turned into various types of cells. When a cell divides, it has the potential to become a more specialsised cell or stay a stem cell. Scientists believe that stem cells are the "ultimate repair kit" for the human body. Stem cells can be used to repair damaged tissue that was damaged from trauma or disease. Scientists even believe that they may make stem cells for parkinsons disease, alzheimlers disease, heart disese, stroke, arthritis, burns, diabetes and spinal cord damage. Stem cells can easily be grown in a lab in large numbers, making it cheaper.

Anonymous said...

Dear Bummblebee401k,
Your post was pretty intresting, but it it could be a little longer and be edited a little more.

Anonymous said...

Dear LovePinkx,
Your post was pretty intresting, but it could be a little longer.

Anonymous said...

Dear Megatron401k,

Your post was cool, keep up the good work!

Anonymous said...

Subject: Fish Reproduction
Citation:By Greg Freeman http://gf.nd.gov/multimedia/ndoutdoors/issues/2008/nov/docs/fish-reproduction.pdf

Fish reproduction is a big part of our scociety, fish reproduce and their offspring or potential prey for bigger fish, which we then catch and can eat. In Devils Lake, North Dakota, game fish such as Walleye are reproduced naturally, which means there are no fish hatcheries that hatch fish and put them into lakes. Devils Lake is famous for the wide variety and abundency of game fish which is why there aren't any fish hatcheries.

Anonymous said...

Chimp Sex:Suprisingly Complicated
http://blogs.discovermagazine.com/80beats/2008/06/18/chimp-sex-surprisingly-complicated/



Chimps are much more aware of their social behavior than humans are. When mating with a high status chimp, the female will give "copulation calls". When they are mating with a low status chimp, they are silent in the mating process. Something that a mating female chimp has to be aware of, is that if there is another female chimp close by, that the sounds may attract the other chimp. If the attention of the other chimp is captivated, then the other female will try to take away the male chimp. Simon Townsend, the observant of this behavior, says that the females try to mate with as many chimp as they can because if a male chimp sees that the child from the female is not his, the male chimp will kill the baby.

I thought that this article was really interesting because who knew the mating of chimps was so complicated? I really liked this article because it not only showed that other living thing are more complicated but that it's not just us who worry about our status. I thought that it was really weird that if a male chimp realized the baby was his, that the male would try to kill it. I would like to know why chimps are so interested in the high-low status of a chimp and why other female chimps are jealous and try to take away the other female's mate.

Anonymous said...

Dear Pinkbabex5,
Cloning is a very popular subject in this class so you picked good. Something you should really really work on, is elaborating about what you learned. If you made a 7th grader read this, they probably wouldn't understand. You should also put it in your own words and not change one word to make it seem like your own.

Anonymous said...

Dear bummblebee401k,
I really like what you talked about. Seems that just about everyone here talked about cloning. Next time you should probably do this on a Microsoft Word document first. You have a lot of spelling errors.

Anonymous said...

Dear Drummsonguitar,
I'm really confused. You made your report on two articles so I'm going to do my comment on the better one. You also picked something about cloning and seems that our whole class in infatuated with cloning. Something good that you did was pick an interesting article[although I'm getting really tired with cloning]but something you should work on is reviewing your work for any spelling mistakes that a word document did catch.

C. Smith said...

Dear Purpleheart36,
Great job explaining how stem cells can be used. You might want to include a question next time.

C. Smith said...

Dear LovePinkx3,
I think your article is interesting, and I liked the way you explained the definition of cloning. You might want to say what surprised you next time, but a really great job!

C. Smith said...

Dear bummblebee401k,

I liked the way you explained why it is necessary for mature adults to produce offspring. Next time include where you got the article and the author.

Anonymous said...

to: LovePinkx3
I like what you wrote about your article. The article you read seems very interesting. Its was good how you included the main facts. I can't believe that you can save endangered species by cloning! I think that you could of improved on making your writing a little bit longer but other then that it was good!

Anonymous said...

to ps3fanboy
I thought what you wrote was really good. I liked how your piece of writing had interesting facts on cells. To improve what your wrote you could make your writing a little more detailed then what it is.

Anonymous said...

to Asian
I thought what you wrote was really interesting. I learned a lot of stuff that I never knew. The article that you read sounds pretty interesting. One thing you can do to make your writing about the article better is make it a little bit longer.

Anonymous said...

to volleyballxshortyy;;
I really like your article because it made me learn more about chimps and their behavior. I always thought that humans were more aware of their actions than humans, but from your article I learned that it's the other way around.

to lovepinkx3;;
I liked your article because I learned that the first animal every cloned was baby bull gaur. I thought it would've been something more common like a dog or cat. anyway, overall you did really good.

to Megatron401k;;
I like your article because I learned a lot from it. Like how the Japanese were the first ones to clone things and that was 16 year old mice. I never thought something that old would've been able to be cloned. I actually didn't know mice lived to 16 years old either...
but anway, you did really well on your article.

:]

Anonymous said...

to lovepinkx3,
i loved your article. we did the same one. ha. great job, keep up the good work !

to thinkpink21,
interesting article, you did a good job!

to ps3fanboy,
good job ! i learned a lot from your article, keep up the good work.

xoxo pinkbabex5

Anonymous said...

Dear Megatron401k

I thought your article was very interisting. i thought you could have used a little more facts and a little longer. but overall the article was very interisting to read.

Anonymous said...

Dear asian:

I though your article was very short. also you need to put your thoughts into it. this will make it longer. what i liked about your article was that you said where the fishes were born and youm gave an example

Anonymous said...

On the PVC science blog I have completed every blog assignment. My strengths for all of the blog assignments are probably summing all of the information up and talking about what I learned from the article. For example, when we have a weekly science article assignment I am good at writing the summary for the article and stating what I learned. I think I need to work on writing down more questions that I have about the articles or assignments. Most students say that the facts that I state are very interesting. I will work on improving making my assignments longer.

Anonymous said...

woops sorry wrong assingmentttt !!!!!!!!!!!!!!!!!!!!!!!!!!!!

Anonymous said...

woops sorry wrong assingmentttt !!!!!!!!!!!!!!!!!!!!!!!!!!!!