Biology Clips, Stills & Slides - View Xenopus Development

In summary, the website has some really neat Clips, Stills, and Slides of small life forms. The video illustrate, how perfectly times embyonic development is, since three three eggs were fertilized at the same time and develop at the same speed. It is cool, since it is a time lapse videa which shows the process from first cell division all the way of the hatching of the tadpole. Too bad the resolution is not so nice, I've got in on a CDROM which is 100x better.
  • #36
You must check this video out if you are interested in molecular biology!

This is the best video I've seen on the subject of DNA replication and transcription.
http://www.youtube.com/watch?v=E8NHcQesYl8"

I think this video is helpful in introducing us to what is happening at the distance-scale of mRNA and transcription factors, and so on. The second part of the video with 3D computer animation shows the machinery that replicates DNA, and is also quite fascinating (move over quantum mechanics!).

What do ya'll think about it?
 
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  • #37
That is a very good animation, and should be quite beneficial for students to better understand the process...especially those who are visual learners. My only critique of it is I wish they had cleaned up some of the background noise on their microphone; it's a bit distracting if one were to use it for classroom teaching, but given the rest of the quality of the animations, that's a minor issue.
 
  • #38


http://www.youtube.com/watch?v=U6QYDdgP9eg&feature=PlayList&p=0696457CAFD6D7C9&index=0&playnext=1"

A Youtube documentary series by the user cdk007 explaining everything from abiogenesis to the rise of intelligence. He also has many other videos insightful and educational videos on a variety of topics that I would highly recommend. ( http://www.youtube.com/user/cdk007 )



http://www.kevinpluck.net/evolution-versus-intelligence/"

An interactive flash game that shows very simply how evolution works with the tiniest bit of selection, given the imperfect nature of reproduction and/or the shuffling of genes with sexual reproduction.
 
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  • #40


Free, on-demand biology lectures:
http://www.ibioseminars.org/

iBioSeminars is a project of the American Society for Cell Biology (ASCB), the Howard Hughes Medical Institute (HHMI), and the University of California, San Francisco (UCSF). It receives funding from ASCB, HHMI, the National Centre for Biological Sciences (NCBS) and Strand Life Sciences Pvt. Ltd..
 
  • #41
Here's a nice virology and immunology resource.
 

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  • #42
Beren said:
Oh, how wonderful!

I especially liked the "Early Phases of Mitosis", and it's even in quicktime format (which I much prefer).

Very nice sites.

I totally agree. :smile:
 
  • #43
Vincent racaniello's virology blog is a very helpful resource, and he has extensive courses on virology and influenza, was well as several podcasts.
http://www.virology.ws
 
  • #44
This one is a basic introduction to neuroscience. It's called "Neuroscience For Kids" but the material is actually quite in-depth and it has a lot of information that anyone who is new to the field would probably be interested in.

Table of contents:

http://faculty.washington.edu/chudler/introb.html
 
  • #45
  • #47
Hello guys :cool:

I need some books about Neuroscience/Neuroanatomy in order to learn this science independently, I have got some ones in computer but I am not sure if they are good books:

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http://uploads.im/rFbp3.jpg
 
  • #48
https://www.ncbi.nlm.nih.gov/books/NBK10799/
Neuroscience, 2nd edition
Editors: Dale Purves, George J Augustine, David Fitzpatrick, Lawrence C Katz, Anthony-Samuel LaMantia, James O McNamara, and S Mark Williams.

https://www.amazon.com/dp/0071390111/?tag=pfamazon01-20
Principles of Neural Science, Fifth Edition (Principles of Neural Science (Kandel)) 5th Edition
Editors: Eric R. Kandel , James H. Schwartz, Thomas M. Jessell, Steven A. Siegelbaum, A. J. Hudspeth

Just read what you like, and compare a couple of books, and wikipedia etc to see if they all say the same thing.
 
  • #49
atyy said:
https://www.ncbi.nlm.nih.gov/books/NBK10799/
Neuroscience, 2nd edition
Editors: Dale Purves, George J Augustine, David Fitzpatrick, Lawrence C Katz, Anthony-Samuel LaMantia, James O McNamara, and S Mark Williams.

https://www.amazon.com/dp/0071390111/?tag=pfamazon01-20
Principles of Neural Science, Fifth Edition (Principles of Neural Science (Kandel)) 5th Edition
Editors: Eric R. Kandel , James H. Schwartz, Thomas M. Jessell, Steven A. Siegelbaum, A. J. Hudspeth

Just read what you like, and compare a couple of books, and wikipedia etc to see if they all say the same thing.
atyy said:
https://www.ncbi.nlm.nih.gov/books/NBK10799/
Neuroscience, 2nd edition
Editors: Dale Purves, George J Augustine, David Fitzpatrick, Lawrence C Katz, Anthony-Samuel LaMantia, James O McNamara, and S Mark Williams.

https://www.amazon.com/dp/0071390111/?tag=pfamazon01-20
Principles of Neural Science, Fifth Edition (Principles of Neural Science (Kandel)) 5th Edition
Editors: Eric R. Kandel , James H. Schwartz, Thomas M. Jessell, Steven A. Siegelbaum, A. J. Hudspeth

Just read what you like, and compare a couple of books, and wikipedia etc to see if they all say the same thing.
Thanks :wink:

And which book would you advise me where I can find the detailed anatomical description of various structures of brain (hippocampus, amygdala and etc.) with their functions? In those four books are scarce information about various structures.
 
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  • #50
Here is a Neuroscience book I really liked when I read it in the 1980's.
https://www.amazon.com/dp/019515956X/?tag=pfamazon01-20 (and others).
Apparently at least some reviewers still like it (5th edition).

Its not really a textbook, but more like a book to read after getting the textbook introduction to brain/nervous system parts, neuron cell biology, and neuronal physiology.
To me, its most interesting aspects elaborates on the textbook knowledge to describe how neurons take their varied inputs and compute their output. This involves understanding the cable properties of neurons (used for modeling the electrophysiology of the neuronal branches) and how local brain circuits compute their outputs. This stuff is at the heart of how a nervous system does its work.
 
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  • #51
I like the book The Major Transitions in Evolution.
It discusses big evolutionary transitions from perspectives of hierarchical organization and information.
Advanced book, requires some pre-existing level of knowledge of evolution.
 
  • #53
Monique said:
Take a look at this website, it has some really neat Clips, Stills, and Slides of small life forms:

http://www.cytographics.com/Especially nice is the video of Xenopus (toad) eggs. The video illustrate, how perfectly times embyonic development is, since three three eggs were fertilized at the same time and develop at the same speed.

It is cool, since it is a time lapse videa which shows the process from first cell division all the way of the hatching of the tadpole. Too bad the resolution is not so nice, I've got in on a CDROM which is 100x better.

http://www.cytographics.com/gallery/clips/cg_16.gif

I clicked on the website and it seems they have server problems. I also wanted access to high resolution images. I also clicked on CONTACT US and that did not work either. Do you have their contact details?
 
  • #54
SciencewithDrJ said:
I clicked on the website and it seems they have server problems.
You might check the date(s) of the post(s) before leaping to too many conclusions.
 
  • #55
SciencewithDrJ said:
I clicked on the website and it seems they have server problems. I also wanted access to high resolution images. I also clicked on CONTACT US and that did not work either. Do you have their contact details?
Looks like the website is still up and the contact us should still work but you need to copy and paste the address into your email program. info[at]cytographics.com
 
  • #56
null said:
Looking for immunology animations

I'm looking for a site with immunology animations that would be appropriate for students that are either non biology majors or have a very basic understanding of biology. I've looked at a few sites you guys have listed (some very cool sites) but haven't found one that gives a good general overview of the immune response cascade. If you know of good site please let me know!
Thanks

Try this: http://highered.mheducation.com/sites/0072495855/student_view0/chapter24/animation__the_immune_response.html

It's not comprehensive, but other websites have great animations, but you must purchase the textbook, which is rather pricey, like this one:
http://www.blink.biz/immunoanimations/
 
  • #57
Hello people :oldsmile:

I have recently finished reading a wonderful book “Evolving Brains” by John Morgan Allman, it describes how brain evolved during the biological history.

This book is really good, but unfortunately it was published more than 20 years ago, so it does not contain new information and author did not publish its second, newer edition.

So, I am looking for another book, or perhaps (review) article(s) describing the same history. I am especially interested in its genetic aspect, more precisely which genes participated in developing/evolving brain. In Allman’s book just several genes were mentioned, for example BF-1, BF-2, Emx-1, Emx-2, Hox-b1, Hox-b2, Hox-b3, Hox-b4, Hox-b5. But nowadays of course much more such genes are discovered, so I want to be awared about them.

So, which book or article(s) would you recommend me? Of course I can try to search them myself, but such “blind” search probably will not be as good as your help :oldeyes:
 
  • #58
Upon googling brain evolution books, I was surprised to see that were were a fair amount of them (have not looked into this in about 20 years or so. Some of them are rather expensive, so a better idea of what you are interested in would be useful.

Allman (as I recall) is more interested in big mammalian brains and the evolutionary forces that shaped them, as opposed to my interests in the histological (tissue organization and cellular level) details of how brains changed and how those changes were generated in development (using genes like the HOX genes).

There seem to be a lot of books on brain-consciousness and reasons for human brain evolution. These seem cheaper, probably because they appeal to a larger audience.

There are also some very old books/reviews on details how brain anatomy and tissue structure differ between various evolved forms.

There are some journals that specialized to brain evolution (such as Brain, Behavior, and Evolution). They should have review articles.
Annual Review books, like the Annual Review of Neuroscience or other related subjects, might have reviews on brain evolution.
Georg Striedter (editor of Brain, Behavior, and Evolution) also has what superficially looks like a couple good books to me (based on my interests), but they are expensive.
Principles of Brain Evolution and Brains Through Time: A Natural History of Vertebrates
Disclousure; I know this guy.

Rather than buying some expensive book, my top recommendation would be to go to a university where there some research interest in this subject (neurobiology and/or evolution) and look at what they have on the shelves.
This would also work for finding review articles on this somewhat obscure subject, unless you can find some that are open access.

You could also get a research gate account and search for articles in there.

Here is an open access article: Evolution of bilaterian central nervous systems: a single origin? that I would probably enjoy, but I am guessing it is earlier (in evolution) than your interests.
 
  • #59
BillTre
Actually I am looking for the genes that participated not in a brain’s whole evolution (this is a big topic) but in primates’s brains’ evolution. More precisely – which genes caused humans’ (ancestor’s) brain to develop compare to chimpanzee. In other words – brain’s evolution during recent 5-7 million years. I should have mentioned this circumstance in my previous post :oldsmile:
BillTre said:
Georg Striedter (editor of Brain, Behavior, and Evolution) also has what superficially looks like a couple good books to me (based on my interests), but they are expensive.
Principles of Brain Evolution and Brains Through Time: A Natural History of Vertebrates
Disclousure; I know this guy.
Thanks, I have already downloaded these books from internet.
BillTre said:
Rather than buying some expensive book
Free download is better solution; in my country nobody will arrest me for this :oldeyes: “Brains Through Time” is so recent book, thanks!
BillTre said:
my top recommendation would be to go to a university where there some research interest in this subject (neurobiology and/or evolution) and look at what they have on the shelves.
For the time being Covid-19 makes this impossible :smile:
BillTre said:
Here is an open access article: Evolution of bilaterian central nervous systems: a single origin? that I would probably enjoy, but I am guessing it is earlier (in evolution) than your interests.
Still thanks :oldsmile:
 
<h2>1. What is Xenopus?</h2><p>Xenopus is a genus of aquatic frogs native to sub-Saharan Africa. The most commonly studied species is Xenopus laevis, also known as the African clawed frog.</p><h2>2. Why is Xenopus development important in biology?</h2><p>Xenopus is a widely used model organism in developmental biology due to its large, easily observable eggs and embryos, and its ability to produce large numbers of offspring. It has been instrumental in understanding the mechanisms of early embryonic development and cell differentiation.</p><h2>3. How are Xenopus embryos used in research?</h2><p>Xenopus embryos are often used in research to study various biological processes such as cell division, cell signaling, and gene expression. They can also be used to test the effects of drugs and toxins on development.</p><h2>4. What are some of the key stages of Xenopus development?</h2><p>Xenopus development can be divided into three main stages: cleavage, gastrulation, and organogenesis. During cleavage, the zygote undergoes rapid cell divisions to form a multicellular embryo. Gastrulation is the process of cell movements and rearrangements that form the three germ layers (ectoderm, mesoderm, and endoderm). Organogenesis is the stage where organs and tissues begin to form.</p><h2>5. How are Xenopus embryos visualized in research?</h2><p>Xenopus embryos can be visualized using a variety of techniques, including brightfield or fluorescent microscopy, confocal microscopy, and time-lapse imaging. Researchers can also use molecular markers or fluorescent dyes to label specific cells or tissues for better visualization.</p>

1. What is Xenopus?

Xenopus is a genus of aquatic frogs native to sub-Saharan Africa. The most commonly studied species is Xenopus laevis, also known as the African clawed frog.

2. Why is Xenopus development important in biology?

Xenopus is a widely used model organism in developmental biology due to its large, easily observable eggs and embryos, and its ability to produce large numbers of offspring. It has been instrumental in understanding the mechanisms of early embryonic development and cell differentiation.

3. How are Xenopus embryos used in research?

Xenopus embryos are often used in research to study various biological processes such as cell division, cell signaling, and gene expression. They can also be used to test the effects of drugs and toxins on development.

4. What are some of the key stages of Xenopus development?

Xenopus development can be divided into three main stages: cleavage, gastrulation, and organogenesis. During cleavage, the zygote undergoes rapid cell divisions to form a multicellular embryo. Gastrulation is the process of cell movements and rearrangements that form the three germ layers (ectoderm, mesoderm, and endoderm). Organogenesis is the stage where organs and tissues begin to form.

5. How are Xenopus embryos visualized in research?

Xenopus embryos can be visualized using a variety of techniques, including brightfield or fluorescent microscopy, confocal microscopy, and time-lapse imaging. Researchers can also use molecular markers or fluorescent dyes to label specific cells or tissues for better visualization.

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