Religion and Ethics Forum
General Category => General Discussion => Topic started by: Sriram on February 16, 2017, 06:22:17 AM
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Hi everyone,
Here is a Science Daily article about how a father's diet affects his son's reproductive capability.
https://www.sciencedaily.com/releases/2017/02/170215150044.htm
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New research involving Monash University biologists has debunked the view that males just pass on genetic material and not much else to their offspring. Instead, it found a father's diet can affect their son's ability to out-compete a rival's sperm after mating.
Dr Susanne Zajitschek from the School of Biological Sciences, said the study highlighted the importance of the paternal environment on future generations, even a long time before offspring were produced.
"They differed in their ability to sire offspring, with the high-protein dads producing sons who were doing much better in sperm competition, which means their sperm was more likely to win against a competitor's sperm within the female tract.
"We also found that the immune response genes were less active in sons of low-protein fathers, while metabolic and reproductive processes were increased in sons of fathers on a high protein diet," she said.
The research, published in Biology Letters, is one of only a few studies to have so far reported trans-generational effects in relation to diet quality, and one of the first to report on the post-copulatory advantages conferred by parental diet.
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Acquired characteristics do affect future generations.
Cheers.
Sriram
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Acquired characteristics do affect future generations.
How many future generations?
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How many future generations?
I am not sure of this specific instance...but normally epigenetic changes are passed on up to 5 generations.
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I am not sure of this specific instance...but normally epigenetic changes are passed on up to 5 generations.
Evidence for that please.
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Evidence for that please.
Google Epigenetics... and read
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Google Epigenetics... and read
I have done but you have made a claim and I want to hear your supporting evidence for 5 generations please.
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I have done but you have made a claim and I want to hear your supporting evidence for 5 generations please.
https://www.nestlenutrition-institute.org/country/in/News/Pages/folic-acid-deficiency-may-impact-later-generations.aspx
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Hi everyone,
Here is a Science Daily article about how a father's diet affects his son's reproductive capability.
https://www.sciencedaily.com/releases/2017/02/170215150044.htm
***********
New research involving Monash University biologists has debunked the view that males just pass on genetic material and not much else to their offspring. Instead, it found a father's diet can affect their son's ability to out-compete a rival's sperm after mating.
Dr Susanne Zajitschek from the School of Biological Sciences, said the study highlighted the importance of the paternal environment on future generations, even a long time before offspring were produced.
"They differed in their ability to sire offspring, with the high-protein dads producing sons who were doing much better in sperm competition, which means their sperm was more likely to win against a competitor's sperm within the female tract.
"We also found that the immune response genes were less active in sons of low-protein fathers, while metabolic and reproductive processes were increased in sons of fathers on a high protein diet," she said.
The research, published in Biology Letters, is one of only a few studies to have so far reported trans-generational effects in relation to diet quality, and one of the first to report on the post-copulatory advantages conferred by parental diet.
***********
Acquired characteristics do affect future generations.
Cheers.
Sriram
when I was younger I used to love eating 'cute cats' don't know if my boy does?
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when I was younger I used to love eating 'cute cats' don't know if my boy does?
I'm hoping 'cute cats' are some kind of confectionary I've not heard of.
Otherwise I have to ask, doesn't the fur get stuck in your throat?
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https://www.nestlenutrition-institute.org/country/in/News/Pages/folic-acid-deficiency-may-impact-later-generations.aspx
Fine, thanks. Do you think its true though that normally it is fewer than 5 generations?
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I'm hoping 'cute cats' are some kind of confectionary I've not heard of.
Otherwise I have to ask, doesn't the fur get stuck in your throat?
it was always a chance I had to take , I went in with the courage of the SAS , suffice to say I'm here to tell the tale.
Mostly I went up the middle , fur on either side , but I carried on until I found the target . A raised point that caused untold thrashing and screams until floods of unexpected joy were reported . I think I got away with it . Until the next time, phew!
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Fine, thanks. Do you think its true though that normally it is fewer than 5 generations?
Maybe. It depends on the organism they research on and how many generations they monitor....and also the type of characteristic they are monitoring. It could even be more than five perhaps in some cases....we never know. This is just the beginning.
The important point here is about the effects of acquired characteristics on future generations and also its impact on evolution. Random genetic variation is not necessarily the only mechanism for evolutionary changes to take place. It could turn out that maybe it is not even a major factor in evolution.
Another important point is about our lifestyle and its negative effects on future generations...as traditional wisdom taught.
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The important point here is about the effects of acquired characteristics on future generations and also its impact on evolution. Random genetic variation is not necessarily the only mechanism for evolutionary changes to take place. It could turn out that maybe it is not even a major factor in evolution.
That is really why I was asking how many generations the effects last. I think it is fair to say that epigenetic effects can have a greater effect in times of stress i.e. when species are under threat, since it can lead to rapid changes in gene expression. It seems from what I have read that epigenetics is a factor in evolution - and I do find this a very interesting area.
Another important point is about our lifestyle and its negative effects on future generations...as traditional wisdom taught.
It may have been determined from observation but what is relevant is how has this effect been explained in that traditional wisdom?
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The important point here is about the effects of acquired characteristics on future generations and also its impact on evolution. Random genetic variation is not necessarily the only mechanism for evolutionary changes to take place. It could turn out that maybe it is not even a major factor in evolution.
Nope. Epigenetics does not change the actual DNA sequence and such changes are obviously required for major evolutionary change.
Another important point is about our lifestyle and its negative effects on future generations...as traditional wisdom taught.
::)
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Nope. Epigenetics does not change the actual DNA sequence and such changes are obviously required for major evolutionary change.
::)
Since you often claim profound scientific knowledge...you ought to know that evolution is linked to the Phenotype and not the Genotype.
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That is really why I was asking how many generations the effects last. I think it is fair to say that epigenetic effects can have a greater effect in times of stress i.e. when species are under threat, since it can lead to rapid changes in gene expression. It seems from what I have read that epigenetics is a factor in evolution - and I do find this a very interesting area.
It may have been determined from observation but what is relevant is how has this effect been explained in that traditional wisdom?
If we know for a fact about some cause and effect, that observation itself is more important and more pertinent to our lives than 'how' it happens. We don't have to wait with folded hands for some chap several centuries later to find the mechanism, before we start observing the rules.
About evolution....it is obvious that epigenetics would determine evolutionary changes. It is epigeneitcs that enables adaptation and changes in phenotype to match environmental pressures. It also probably contributes fundamentally to diversity.
The fact that we humans are very similar genetically with only minor differences, and yet there are such major differences in our phenotype, shows that it is probably epigenetics that is largely responsible for diversity and evolutionary adaptation.
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If we know for a fact about some cause and effect, that observation itself is more important and more pertinent to our lives than 'how' it happens. We don't have to wait with folded hands for some chap several centuries later to find the mechanism, before we start observing the rules.
The relevance of the 'how' comes from what claims are made about ancient knowledge. If, for example, such interpretations of observations lead to belief in certain things, and then this belief gets transferred to other areas, then this is an issue as far as I am concerned.
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Since you often claim profound scientific knowledge...you ought to know that evolution is linked to the Phenotype and not the Genotype.
That doesn't even make sense. My point was that without changes to DNA, we are not going to get large evolutionary changes. Our common ancestor didn't evolve into humans and chimpanzees due to epigenetics. The evolution of the genome is absolutely clear. Epigenetics adds to our understanding but it isn't a replacement.
http://www.nature.com/scitable/topic/evolutionary-genetics-13