Picture of the Day
Title: Barbara McClintock
Photograph credit: Science Service, Smithsonian Institution; restored by Adam Cuerden
Barbara McClintock (June 16, 1902 – September 2, 1992) was an American scientist and one of the world's most distinguished cytogeneticists. After receiving her PhD in botany from Cornell University in 1927, McClintock began studying chromosomes and how they change during reproduction in maize. She developed the technique for visualizing maize chromosomes and used microscopic analysis to demonstrate many fundamental genetic ideas. One of these was the notion of genetic recombination by crossing over during meiosis – a mechanism by which chromosomes exchange information. McClintock produced the first genetic map for maize, linking regions of the chromosome to physical traits. She also demonstrated the role of the telomere and the centromere, regions of the chromosome that are important in the conservation of genetic information. Recognized as among the best in the field, she received the 1983 Nobel Prize in Physiology or Medicine.
This 1947 photograph, in the collection of the Smithsonian Institution Archives, shows McClintock in her laboratory at the Cold Spring Harbor Laboratory in Laurel Hollow, New York.
• PPG is a recent changes patroller with Huggle and Twinkle
• PPG has a single unified login for accounts created after May 2008
In a related story PPG's cat grants requests for rollback.
My Significant Contributions
- Broke news about the two original people questioned 1
- Broke news about arrested arson suspect Raymond Lee Oyler both when he was regarded as "a person of interest" 2 and when he was officially charged (including court date and location) 3
- Added the information about the funeral service that will be held for the five fallen fire fighters 4
- Added the estimated dollar damage of fire 5
- Typed up most of the plot summary for the Dark Cloud 1 video game article and re-edited on occasion 12
Dunstan Baby Language
- Contributed to the first seven sections of article in its preliminary stages (The Theory, Words (Sound Reflexes), Criticism, DVD, About Priscilla Dunstan, See also, and External Links) 12
- Wrote the original version of the plot section shortly after the release of the game in September 2007 1
- Added an animated walk sequence of a man (Walk-Cycle.gif), created by myself.
Pronunciations: Abadan (help·info), Alborz (help·info), Christiane Amanpour (help·info), Nowruz (help·info), Persepolis (help·info), Shiraz (help·info), Shohreh Aghdashloo (help·info), Tehran (help·info)
Article One of the United States Constitution
California Gold Rush
Wikipedia:No original research
Wikipedia:Be bold in updating pages
In the News
Gallimimus was a theropod dinosaur that lived in what is now Mongolia about 70 million years ago, during the Late Cretaceous. The genus is part of the ostrich dinosaur group of feather-bearing, fast runners. Its head was small and light with large eyes and a bulbous structure at the base of the skull. The snout was longer, broader and more rounded than in similar species. Its horny beak was toothless with a delicate lower jaw. The neck and legs were long, and the weak forelimbs had short three-fingered hands. Several of its fossils were discovered in the Gobi Desert in the 1960s. Gallimimus means "chicken mimic", from the shape of its neck vertebrae. It may have had good vision and intelligence comparable to ratite birds, living in groups as an omnivore, a filter-feeder or a herbivore. Gallimimus was featured in the film Jurassic Park in a scene that included innovative special effects and shaped the popular view of these dinosaurs as bird-like animals. (Full article...)
Sweet Nothings by Godward Feedback
About Persian Poet Gal
Persian Poet Gal
here, pleasure to make your acquaintance. I'm a half Persian
) female born and raised in great sunny California
! I enjoy many things such as poetry
(obvious of course), reading
, playing video games
, light programming
, and just making a person's day better :). I used to be active at the Windows Movie Maker Forums
but now I have sort of semi-retired due to being crammed with my studies. I also contributed to "The Persian Page"
, a page devoted to implementing custom effects and transitions into Windows Movie Maker 2 using xml
which is hosted and now fully edited by "PapaJohn" Buechler
. I voluntarily patrol the "Recent Changes Page"
. While on patrol I keep on the lookout to make sure articles are free of vandalism
and abide by the Wikipedia Golden Rules
:P. I also help create Wikipedia Ads
for different WikiProjects, see this page
for details. Believe it or not I start new articles and edit pre-existing ones every now and then! So please feel free to mercilessly edit
any of my Wiki-Contributions just the same. I honestly feel there is always someone who can add a little extra ;). However, those not-so-nice
enough to vandalize
my page or anyone else's for that matter, it will not do you any good
. Thanks for reading a little bit about me :D!
Kind Users (Awards)
This section is not merely devoted to the awards I receive but to the users who take the time out of their day to reward others with such kindness. Thanks nice Wikipedians!