Introducción a los tejidos animales. Atlas de Histología Vegetal y Animal Un tejido (del latín texere = tejer) es un conjunto de células que cooperan para llevar a cabo una o varias funciones en un organismo. Estas células se relacionan entre sí mediante interacciones directas entre ellas o mediadas por la matriz extracelular. Distintos tejidos se asocian entre sí para formar los órganos. A pesar de que las células que forman un organismo son muy diversas en forma y función, los histólogos han clasificado tradicionalmente a los tejidos en cuatro tipos fundamentales: Tejidos epiteliales. Tejidos conectivos o conjuntivos. Tejido muscular. Tejido nervioso.
Resources, Animations, Interviews, + Tools :: DNA Learning Center We are enhancing our most popular resources by building collections around them. First up: Polymerase Chain Reaction! The DNA Learning Center has been developing multimedia animation programs since 1990. These popular programs feature some of the most common molecular processes such as PCR, sequencing, and DNA restriction. View online or download for play from your computer. Stunning three-dimensional visualizations of cellular and molecular processes. An interactive brain map that allows users to rotate the brain in three-dimensional space. Gene Screen is a fun way to learn how recessive genetic traits and diseases are inherited and find out which genetic diseases are more prevalent where your ancestors came from. Each year a select few scientists are recognized for their work by the Nobel Foundation. Join Dave Micklos, Jan Witkowski, and staff commentators for a lively discussion of DNA in the news from world-renowned Cold Spring Harbor Laboratory!
Luova - KISA: Murra biotekniikan myytti! KISA: Murra biotekniikan myytti! Oletko aina ihmetellyt jonkin huhun, sanonnan tai uskomuksen todenperäisyyttä? Niin olemme mekin Luovassa. Biotekniikan teemaviikon kunniaksi Luova järjestää kaikille nuorille avoimen Murra biotekniikan myytti! -kilpailun. Kilpailu pähkinänkuoressa Kilpailu on avoin kaikille 13-19-vuotiaille Osallistuminen vain digitaalisilla tiedostoilla (esim. pdf tai kuva) Osallistumisaika 1.9.2015 – 18.10.2015 Voittajat palkitaan Voittajajien nimet ja työt julkistetaan Luovassa osallistumisajan päätyttyä Infograafit ja posterit tulee olla itse tehtyjä ja mahdollisesti käytettyihin kuviin tulee tekijällä olla täydet käyttöoikeudet Infografiikkoja voidaan käyttää Helsingin yliopiston sekä LUMA-keskus Suomi -verkoston viestinnässä Kisaan osallistutaan lähettämällä posteri tai infograafi Luovan toimistukselle sähköpostitse (outi.haatainen@helsinki.fi) omien yhteystietojen kera. Klikkaa tästä lisätietoa kisasta Hei, Todella kiva kilpailu! — Marianne · 5 09 2015 - 09:11 · # Hei!
How flu viruses gain the ability to spread -- ScienceDaily Flu viruses come in many strains, and some are better equipped than others to spread from person to person. Scientists have now discovered that the soft palate -- the soft tissue at the back of the roof of the mouth -- plays a key role in viruses' ability to travel through the air from one person to another. The findings, described in the Sept. 23 online edition of Nature, should help scientists better understand how the flu virus evolves airborne transmissibility and assist them in monitoring the emergence of strains with potential to cause global outbreaks. Researchers from MIT and the National Institute of Allergy and Infectious Diseases (NIAID) made the surprising finding while examining the H1N1 flu strain, which caused a 2009 pandemic that killed more than 250,000 people. The 2009 strain was very good at binding to human alpha 2-6 receptors. Airborne evolution The researchers are now trying to figure out how this reversion occurs, and why it happens in the soft palate.
All About The Human Genome Project (HGP) All About The Human Genome Project (HGP) The Human Genome Project (HGP) was one of the great feats of exploration in history - an inward voyage of discovery rather than an outward exploration of the planet or the cosmos; an international research effort to sequence and map all of the genes - together known as the genome - of members of our species, Homo sapiens. Completed in April 2003, the HGP gave us the ability, for the first time, to read nature's complete genetic blueprint for building a human being. In this section, you will find access to a wealth of information on the history of the HGP, its progress, cast of characters and future. A Quarter Century after the Human Genome Project's Launch: Lessons Beyond the Base Pairs October 1, 2015 marked the 25th anniversary of the launch of the Human Genome Project. Educational Resources Top of page General Information Research Model Organisms To view the PDFs on this page you will need Adobe Reader.
GCSE Bitesize: Pathogens