Genetik Odaklı Proje - 2. Bölüm. Projenin bu bölümünde, hakkında bir önceki bölümde genel bilgiler derlediğimiz CFTR genine ilişkin veri kaynaklarına nasıl ulaşacağımızı öğreneceğiz. Bir biyolojik molekül (gen, protein vb.) hakkında literatürde yer alan bilgilere kolay bir şekilde erişim sağlayabilmek amacıyla her biri farklı bir alana odaklanmış birçok biyolojik veritabanı oluşturulmuştur. Her ne kadar birçok veri kaynağı olsa da, hangi kaynağın ne zaman kullanılması gerektiği başlıbaşına bir sorundur. İşte tam da bu nedenle, birçok veritabanındaki bilgileri tek bir çatı altında toparlayarak gerektiğinde de bu veritabanlarına bağlantılar veren yeni derleyici veritabanları meydana gelmiştir. Bugün üzerinde çalışacağımız derleyici veritabanı, GeneCards adı verilen ve insanlarda bulunan genler üzerine hazırlanmış bir çevrimiçi araç [online tool]. İlk olarak, www.genecards.org adresini ziyaret edeceğiz ve arama kutusuna hakkında bilgi sahibi olmak istediğimiz geni yazacağız: CFTR.
Başarılar.Ne öğrenmeyi bekliyoruz? Deep Time : A History of the Earth - Interactive Infographic. The Flying Trilobite. Timeline: The evolution of life - life - 14 July 2009. Read full article Continue reading page |1|2|3|4 There are all sorts of ways to reconstruct the history of life on Earth. Pinning down when specific events occurred is often tricky, though. For this, biologists depend mainly on dating the rocks in which fossils are found, and by looking at the "molecular clocks" in the DNA of living organisms. There are problems with each of these methods. Modern genetics allows scientists to measure how different species are from each other at a molecular level, and thus to estimate how much time has passed since a single lineage split into different species. These difficulties mean that the dates in the timeline should be taken as approximate. 3.8 billion years ago?
This is our current "best guess" for the beginning of life on Earth. , and was probably based on RNA rather than DNA. At some point far back in time, a common ancestor gave rise to two main groups of life: bacteria and archaea. 3.5 billion years ago 3.46 billion years ago 3.4 billion years ago. Apoptoz Is. Apoptoz is. Cogito – YKY. Biyo RSS: Güncel Biyoloji Haberleri. İnsan Doğası ve Evrim. INSANIN EVRIMI. The University of Utah. ATLAS | Keşfetmek İçin Bak. Evrim Çalışkanları. Boğaziçi Üniversitesi Garanti Kültür Merkezi’nde 21-22 Aralık 2013 tarihlerinde gerçekleştirilecek olan IV. Evrim, Bilim ve Eğitim Sempozyumu’nun programı açıklandı. ==21 Aralık 2013 Cumartesi== 08.30 Kayıt 09.30 Açılış Konuşmaları 1. 10.00 – 10.20 “Türkiye’de Popüler Bilim Yayıncılığı” İnan Aran 10.20 – 10.40 “Bilim-Sözde Bilim Ayrımı” Nalan Mahsereci 10.40 –11.00 “Paleontolojik Bulguların Işığı Altında Türkiye’de Doğa Tarihi Müzeciliği” Serdar Mayda 11.00 – 11.20 “Evrim Düşüncesinin Toplumsallaştırılmasında Öğrenci Kulüplerinin Rolü” Seval Bal 11.20 – 11.40 “Çocuklar için Evrim Atölyesi Deneyimi” Tuluğ Ünlütürk 11.40 – 12.00 Tartışma 12.00 – 13.00 Öğle Yemeği 2. 14.40 – 15.00 Ara 3. 15.00 – 15.20 “Evrim Kuramının Sessiz Kahramanı: Alfred Russel Wallace” Aykut Kence 15.20 – 15.40 “Genetik Belirlenimciliğin Tarihi: Morgan’ın Sinek Odasından Genom Analizine” Gökhan Akbay 15.40 – 16.00 “Ortaöğretimde Bilim Öğretimi: Nasıl ve Neden Değişiyor?”
==22 Aralık 2013 Pazar== 4. 5. 15.40 – 16.00 Ara 6. Müspet ilimler kumpanyası. MY LIFE AND THOUGHTS. Doğa Tarihi. Kaan Öztürk | Karmaşık sistemler, hesaplamalı bilim ve akademik hayat. “Kriptografi Gördüm”, Wunjo… In Fotoğraf Günlüğü. Bilim Güncesi. Yaşamın kıyısında. No dry light. S blog. What’s evolution got to do with math? This is an article I recently wrote (in Turkish) on the mathematical analysis of microevolutionary process, focusing on demography, variation and selection components of the current eco-evolutionary models. It is published in Cumhuriyet Bilim Teknik (1373: 10-11), a popular science magazine in Turkey, and reproduced here with their permission.
Bu soruyu sormadan önce matematiğin doğa bilimleriyle ne alakası olduğunu bir kez daha hatırlayalım. Bilim insanları olarak, doğanın nasıl işlediğine dair gözleme dayalı öngörülerimizi hipotezler halinde paketleyip geçerliliklerini gözlem ve deneyler yoluyla sorguluyoruz. Modern sentezin mimarlarından J.B.S. Temel bilimlerin her alanında olduğu gibi, evrimsel biyolojide de hipotezlerimizin birçoğunu nicel olarak formüle ediyor, bu sayede bilimsel sorgulama işlemini daha titiz ve objektif hale getirebiliyoruz. . * Aynı zamanda “çıkar” anlamına da gelen İngilizce “interest” kelimesinin doğru çevirisidir!
S e q u e n c e S. MYRMECOS - Insect Photography - Insect Pictures. Thoughtomics. Biology and Basic Science News, Articles, and Information from Scientific American. Skepchick. Science. Stories tagged with “Science” This 32-Year-Old Florida Woman Is Dead Because Her State Refused To Expand Medicaid One English Town’s Innovative Response To Sea Level Rise Women From Koch-Funded Conservative Groups Lambaste Equal Pay Measure Culture ‘Orange Is The New Black’ Star Duped Into Narrating Film That Says The Sun Revolves Around The Earth By Josh Israel on April 8, 2014 While the onetime Starfleet captain announces that "everything we think we know about our universe is wrong," it appears that everything she and several of the world's top cosmologists thought about the film was also incorrect 260 Tweets 4,395 Shares Economy Men Outnumber Women 7 to 3 In Tech Industry, Report Says By Lauren C.
The tech industry's gender problem extends out further than Silicon Valley where men outnumber women 7 to 3 tech jobs in New York City -- and nationwide. 133 Tweets 269 Shares Home Page Creationist Lawmakers Derail Third Grader’s Campaign To Honor The Woolly Mammoth By Aviva Shen on April 2, 2014 Climate. John hawks weblog | paleoanthropology, genetics and evolution. Denim and Tweed.
Gene Expression. Evolving Thoughts | Struggling with impermanence and vagueness in a complex world. Darren Naish: Tetrapod Zoology. Afarensis: Anthropology, Evolution, and Science. An Index to Creationist Claims. The Panda's Thumb. Why Evolution Is True. Pharyngula. As anyone who has ever raised aquarium fish knows, they’re all different.
Maybe you think a fish is just a fish, not very different from one another and all rather stupid, but I spent years sitting next to tanks of zebrafish, and I can tell you you’re wrong. I’d watch them gamboling about, and you’d quickly realize that oh, that one is aggressive, that one likes to hid, that one gets the zoomies and darts about the tank. You can learn to recognize individual fish by their behavior. I always wondered about that. These were highly inbred animals, with only slight genetic differences between them, but could those little genetic variations account for strong differences in behavior? Then I acquired a new line of zebrafish, one that was the product of hybridization between our inbred lines and wild-caught native stocks, and oh boy, their behavior was radically different, instantly distinguishable.
Maybe it is genetic. What have we learned? I always wondered about that. What have we learned? Bad Astronomy. Well now, this is an interesting discovery: astronomers have found what looks like a "super-Earth" – a planet more massive than Earth but still smaller than a gas giant – orbiting a nearby star at the right distance to have liquid water on it! Given that, it might – might – be Earthlike. This is pretty cool news. We’ve found planets like this before, but not very many! And it gets niftier: the planet has at least five siblings, all of which orbit its star closer than it does. Now let me be clear: this is a planet candidate; it has not yet been confirmed. Reading the journal paper (PDF), though, the data look pretty good. It may yet turn out not to be real, but for the purpose of this blog post I’ll just put this caveat here, call it a planet from here on out, and fairly warned be ye, says I.
The star is called HD 40307, and it’s a bit over 40 light years away (pretty close in galactic standards, but I wouldn’t want to walk there). We don’t know how big the planet is, unfortunately. Science. Science - News for Your Neurons. The Loom. Your hands are, roughly speaking, 360 million years old. Before then, they were fins, which your fishy ancestors used to swim through oceans and rivers. Once those fins sprouted digits, they could propel your salamander-like ancestors across dry land. Fast forward 300 million years, and your hands had become fine-tuned for manipulations: your lemur-like ancestors used them to grab leaves and open up fruits. Within the past few million years, your hominin ancestors had fairly human hands, which they used to fashion tools for digging up tubers, butchering carcasses, and laying the groundwork for our global dominance today.
We know a fair amount about the transition from fins to hands thanks to the moderately mad obsession of paleontologists, who venture to inhospitable places around the Arctic where the best fossils from that period of our evolution are buried. A team of Spanish scientists has provided us with a glimpse of that story. Both fins and hands get their start in embryos. Not Exactly Rocket Science. NeuroLogica Blog. Jan 13 2017 Cognitive Biases in Health Care Decision Making This was an unexpected pleasant find in an unusual place.
The Gerontological Society of America recently put out a free publication designed to educate patients about cognitive biases and heuristics and how they can adversely affect decision making about health care. The publication is aimed at older health care consumers, but the information it contains is applicable to all people and situations. It is a well written excellent summary of common cognitive biases with a thorough list of references. There are plenty of other resources that also review this material, including my own Teaching Company course, but this is a good user-friendly reference. What is most encouraging about this publication is the simple fact that it recognizes that this is an issue. The report is aimed simultaneously at health care providers and patients. Continue Reading » Jan 12 2017 Curcumin Hype vs Reality The systematic review had two main findings: