:''Heterotic string theory is a field of physics.'' Heterosis is increased strength of different characteristics in hybrid; the possibility to obtain a "better" individual by combining the virtues of its parents. Dog_hybrids_and_crossbreeds">Image:MixedBreedFace1_wb.jpg|thumb|right|A Dog hybrids and crossbreeds This is commonly known as hybrid vigor. It is an observable phenomenon in which a hybrid plant or animal may exhibit greater strength, health or faster rate of growth than its parents. The term often causes controversy, particularly in terms of domestic animals, because it is sometimes believed that all crossbred plants or animals are better than their parents; this is untrue. Rather, when a hybrid is seen to be superior to its parents, this is known as hybrid vigor. Heterosis is an example of heterozygous advantage. It may also happen that a hybrid inherits and exhibits the worst qualities of each of its parents, or is inferior to each. Sterility is a common manifestation of this, as in a mule, a hybrid of a donkey and a horse that is always incapable of reproduction. One study suggests that hybrid vigor may be associated with increased intelligence (trait) in humans. Nagoshi and Johnson (1986) found that children of Japanese-Caucasian cross-ethnic matings scored .26 standard deviation higher on several cognitive tests than those from within-ethnic matings. The increase in scores tended to be higher on cognitive tests that were more g theory, suggesting that hybrid vigor improves ''g''. Mingroni (2004) has argued that heterosis may be partially responsible for the Flynn effect. == See also == * F1 hybrid ==References== *[http://gears.tucson.ars.ag.gov/book/hybrid.html HYBRID VIGOR IN PLANTS AND ITS RELATIONSHIP TO INSECT POLLINATION] - a section from Insect Pollination Of Cultivated Crop Plants by S.E. McGregor, USDA *[http://oregonstate.edu/dept/hort/233/index.htm F1 Hybrids General Discussion] - professor's notes from a Oregon State University course *[http://www.urbanext.uiuc.edu/hortihints/0102a.html Hybrids & Heirlooms] - an article from University of Illinois Extension * * Classical genetics
For the person who wanted to delete the heterotic string: I am sorry, but if you look at the history of this page, you will see that this page was established because of string theory - and it is genetic which is secondary. The picture of the dog is nice, but eliminating references to string theory is vandalism because the heterotic string is quite certainly more important than some dogs of an uncertain pedigree. --User:Lumidek 16:38, 28 Sep 2004 (UTC) :I didn't "vandalize" the page by commenting out the reference to string theory. I came to a page that had a bizarre, unmotivated reference to string theory; not knowing the details of string theory, I represent a typical, lay Wikipedia user. Rather than removing the link entirely, I commented out the link and requested justification to a reference to string theory. You have provided that justification. If I had never commented out the link, you wouldn't have explained why string theory should be referenced and we'd be left with a shoddy, bizarre connection between genetics and string theory. ''Together, we have have improved Wikipedia.'' --User:WpZurp 22:27, 28 Sep 2004 (UTC) Can someone cite sources for the section on "reverse hybrid vigor"? The only Google results I find for this term are for Wikipedia and its mirrors. User:Aero34 05:04, 3 Jan 2005 (UTC) == Regarding the addition of 'some stinky dogs' == I don't know how many of the uninitiated would understand the reference to heterotic string; I'm guessing it wouldn't be many. However, the words "hybrid vigour" incite passionate debate in the various animal fancy groups. "Heterosis" just happens to be the proper term for this phenomenon. I'm sure no disrespect was meant to string theory, but believe me it's more than just a question of a few stinking dogs, or cats, or horses, or cows, or....Thanks for the chuckle! User:Quill 04:30, 3 Apr 2005 (UTC)
See other meanings of words starting from letter:
Words begining with Heterosis:
Heterosis
Heterosis
Heterosis
:''Heterotic string theory is a field of physics.'' Heterosis is increased strength of different characteristics in hybrid; the possibility to obtain a "better" individual by combining the virtues of its parents. Dog_hybrids_and_crossbreeds">Image:MixedBreedFace1_wb.jpg|thumb|right|A Dog hybrids and crossbreeds This is commonly known as hybrid vigor. It is an observable phenomenon in which a hybrid plant or animal may exhibit greater strength, health or faster rate of growth than its parents. The term often causes controversy, particularly in terms of domestic animals, because it is sometimes believed that all crossbred plants or animals are better than their parents; this is untrue. Rather, when a hybrid is seen to be superior to its parents, this is known as hybrid vigor. Heterosis is an example of heterozygous advantage. It may also happen that a hybrid inherits and exhibits the worst qualities of each of its parents, or is inferior to each. Sterility is a common manifestation of this, as in a mule, a hybrid of a donkey and a horse that is always incapable of reproduction. One study suggests that hybrid vigor may be associated with increased intelligence (trait) in humans. Nagoshi and Johnson (1986) found that children of Japanese-Caucasian cross-ethnic matings scored .26 standard deviation higher on several cognitive tests than those from within-ethnic matings. The increase in scores tended to be higher on cognitive tests that were more g theory, suggesting that hybrid vigor improves ''g''. Mingroni (2004) has argued that heterosis may be partially responsible for the Flynn effect. == See also == * F1 hybrid ==References== *[http://gears.tucson.ars.ag.gov/book/hybrid.html HYBRID VIGOR IN PLANTS AND ITS RELATIONSHIP TO INSECT POLLINATION] - a section from Insect Pollination Of Cultivated Crop Plants by S.E. McGregor, USDA *[http://oregonstate.edu/dept/hort/233/index.htm F1 Hybrids General Discussion] - professor's notes from a Oregon State University course *[http://www.urbanext.uiuc.edu/hortihints/0102a.html Hybrids & Heirlooms] - an article from University of Illinois Extension * * Classical genetics
Heterosis
For the person who wanted to delete the heterotic string: I am sorry, but if you look at the history of this page, you will see that this page was established because of string theory - and it is genetic which is secondary. The picture of the dog is nice, but eliminating references to string theory is vandalism because the heterotic string is quite certainly more important than some dogs of an uncertain pedigree. --User:Lumidek 16:38, 28 Sep 2004 (UTC) :I didn't "vandalize" the page by commenting out the reference to string theory. I came to a page that had a bizarre, unmotivated reference to string theory; not knowing the details of string theory, I represent a typical, lay Wikipedia user. Rather than removing the link entirely, I commented out the link and requested justification to a reference to string theory. You have provided that justification. If I had never commented out the link, you wouldn't have explained why string theory should be referenced and we'd be left with a shoddy, bizarre connection between genetics and string theory. ''Together, we have have improved Wikipedia.'' --User:WpZurp 22:27, 28 Sep 2004 (UTC) Can someone cite sources for the section on "reverse hybrid vigor"? The only Google results I find for this term are for Wikipedia and its mirrors. User:Aero34 05:04, 3 Jan 2005 (UTC) == Regarding the addition of 'some stinky dogs' == I don't know how many of the uninitiated would understand the reference to heterotic string; I'm guessing it wouldn't be many. However, the words "hybrid vigour" incite passionate debate in the various animal fancy groups. "Heterosis" just happens to be the proper term for this phenomenon. I'm sure no disrespect was meant to string theory, but believe me it's more than just a question of a few stinking dogs, or cats, or horses, or cows, or....Thanks for the chuckle! User:Quill 04:30, 3 Apr 2005 (UTC)
See other meanings of words starting from letter:
H
HA | HB | HC | HD | HE | HF | HG | HI | HJ | HK | HL | HM | HN | HO | HP | HR | HS | HT | HU | HW | HX | HY | HZ |Words begining with Heterosis:
Heterosis
Heterosis
These materials are based on Wikipedia and licensed under the GNU FDL
YouTube.com videos better site than Turbo Tax 2007
