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Your teacher was wrong!...
Posted by
connolly
on
November 12, 2009 |
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I studied neuroscience in college and subsequently taught it for three years at university. One of the central tenants of the course I studied and taught was the dogma of synaptic transmission. The basic tenant of this dogma is that neurons communicate exclusively by sending chemical signals across the synaptic cleft. Pretty much every neuroscience textbook ever written is filled with this idea. It...
I studied neuroscience in college and subsequently taught it for three years at university. One of the central tenants of the course I studied and taught was the dogma of synaptic transmission. The basic tenant of this dogma is that neurons communicate exclusively by sending chemical signals across the synaptic cleft. Pretty much every neuroscience textbook ever written is filled with this idea. It...
Does New DNA Always Mean New Traits?...
Posted by
mckechni
on
November 10, 2009 |
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I was teaching a class of fifth grade students last week and we were discussing the characteristics of DNA and cells. As a group, we described how the human body is made up of a variety of cell types, including muscle cells, nerve cells, and more. I explained that although cells can be diverse in their appearance and functions, within one organism they all have the same DNA (except for mature red...
I was teaching a class of fifth grade students last week and we were discussing the characteristics of DNA and cells. As a group, we described how the human body is made up of a variety of cell types, including muscle cells, nerve cells, and more. I explained that although cells can be diverse in their appearance and functions, within one organism they all have the same DNA (except for mature red...
The new “oldest” member to o...
Posted by
Carrasco Gottlieb
on
November 9, 2009 |
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During an anthropological expedition in 1992 to the Middle Awash river valley in Ethiopia, a research team led by Tim White uncovered a fascinating, previously unknown fossil Hominid. In 1994, the fossil was named Ardipithecus ramidus. In the Afar language, “Ardi” means ground floor and “ramid” means root. Affectionately known as “Ardi”, some of her features...
During an anthropological expedition in 1992 to the Middle Awash river valley in Ethiopia, a research team led by Tim White uncovered a fascinating, previously unknown fossil Hominid. In 1994, the fossil was named Ardipithecus ramidus. In the Afar language, “Ardi” means ground floor and “ramid” means root. Affectionately known as “Ardi”, some of her features...
How can I prolong health? Hmmm….....
Posted by
jwatkins
on
November 6, 2009 |
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Having an edge on the stock market can allow one to make hundreds, thousands or even millions of dollars. But rarely do we think of having an edge on life. Since the sequencing of the human genome our understanding of human genes and their interaction has grown. Geneticists now have the capability to analyze genetic make-ups, and elucidate what genetic patterns will evolve into certain conditions...
Having an edge on the stock market can allow one to make hundreds, thousands or even millions of dollars. But rarely do we think of having an edge on life. Since the sequencing of the human genome our understanding of human genes and their interaction has grown. Geneticists now have the capability to analyze genetic make-ups, and elucidate what genetic patterns will evolve into certain conditions...
What’s in a Weed?...
Posted by
mcbrien
on
November 4, 2009 |
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If you’re a geneticist, it’s likely that your experiments are not on humans, even if you’re studying human diseases. This is a concept we spend a great deal of time discussing with the 5th-8th graders who visit the DNA Learning Center. It’s hard for a youngster, and many adults for that matter, to understand how a worm or a bug might have anything in common with a human, nonetheless anything...
If you’re a geneticist, it’s likely that your experiments are not on humans, even if you’re studying human diseases. This is a concept we spend a great deal of time discussing with the 5th-8th graders who visit the DNA Learning Center. It’s hard for a youngster, and many adults for that matter, to understand how a worm or a bug might have anything in common with a human, nonetheless anything...
SNP Snoop: BDNF and driving ability; fai...
Posted by
williams
on
November 2, 2009 |
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Could an alternative version of your brain-derived neurotropic factor be an excuse for your failed road test? According to research published in the Journal, Cerebral Cortex, by Stephanie McHughen et.al., a key SNP in BDNF (valine 66 mutated to methionine) impacts learning and memory functions, cognitive tools which happen to be crucial for operating an automobile. During one of the described experiments,...
Could an alternative version of your brain-derived neurotropic factor be an excuse for your failed road test? According to research published in the Journal, Cerebral Cortex, by Stephanie McHughen et.al., a key SNP in BDNF (valine 66 mutated to methionine) impacts learning and memory functions, cognitive tools which happen to be crucial for operating an automobile. During one of the described experiments,...
Who’s My Other Mommy?...
Posted by
setton
on
October 26, 2009 |
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Fraternal Rhesus Macaque twins, Mito and Tracker, have two different DNA mommies: their mother’s chromosomal DNA was injected into enucleated egg cells belonging to another Rhesus monkey female prior to fertilization. The eggs were fertilized, in vitro, with donor sperm and implanted in yet another female who carried the healthy twins to term. The nucleus, where chromosomal DNA is stored and protected,...
Fraternal Rhesus Macaque twins, Mito and Tracker, have two different DNA mommies: their mother’s chromosomal DNA was injected into enucleated egg cells belonging to another Rhesus monkey female prior to fertilization. The eggs were fertilized, in vitro, with donor sperm and implanted in yet another female who carried the healthy twins to term. The nucleus, where chromosomal DNA is stored and protected,...
This blog was developed by the Dolan DNA Learning Center of the Cold Spring Harbor Labs. Our content is licensed under the Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 United States License.