Navigation Links
New book expands biological classifications to account for 'alien' life

What would you call an alien if you encountered it on the street tomorrow? What if that alien didn't come from another world but rather was created in a laboratory right here on Earth and functioned differently from other Earth life?

Either way, Peter Ward has the beginnings of an answer. In a new book, the University of Washington paleontologist puts forth an expanded "tree of life," or biological classification system, to account for a variety of life forms that would not fit in the current system.

Among them are viruses, long considered to be non-living bits of protein and nucleic acid but which Ward argues are as alive as the many parasites that infect humans and other organisms. The revamped classification system also would include life based on RNA instead of DNA, and life found away from Earth that likely would be based on silicon or elements other than the carbon-hydrogen-oxygen-nitrogen mixture that is the backbone of life on Earth.

"To get to DNA life you had to go through non-DNA life, which we no longer have," Ward said. "But just because a type of life goes extinct doesn't mean you don't classify it. Otherwise you wouldn't have dinosaurs on the tree of life. And until now there hasn't been any place to put RNA life."

In the current popular classification system the highest levels are three domains ?bacteria, archaea and eukarya, the last of which includes all animals. Ward's plan places those three domains within a larger dominion, which he calls "terroan" to signify Earth origins. Another dominion he calls "ribosa" because it is based on ribonucleic acid, or RNA. Other dominions could be formed to cover life discovered to have a different base than DNA or RNA.

The dominions would be placed within broader classifications called "arborea," which contain life that does not mix with that of other arborea. The Earth arborea would contain all life forms found on this planet and other arborea would contain life found awa
'"/>

Source:University of Washington


Page: 1 2 3

Related biology news :

1. International HapMap consortium expands mapping effort
2. Gene expands malarias invasion options
3. MWG Biotech expands siMAX?siRNA portfolio with new scales, lengths and design tools
4. NHGRI expands effort to revolutionize sequencing technologies
5. New study expands understanding of the role of RNA editing in gene control
6. NIAID expands capability for influenza research and surveillance
7. NYU researchers simulate molecular biological clock
8. Automatic extraction of gene/protein biological functions from biomedical text
9. DuPonts first biologically derived polymer receives global recognition
10. Glow-in-the-dark zebrafish at UH hold keys to biological clocks
11. Discovery clarifies role of peptide in biological clock
Post Your Comments:
(Date:12/19/2014)... Dec. 18, 2014   LaunchKey , the first ... post-password and Internet of Things era, today announced the ... venture round was led by Metamorphic Ventures with participation ... Partners, VegasTechFund, and others.  LaunchKey has raised $4 million ... expand its team and bring LaunchKey to market in ...
(Date:12/17/2014)... YORK , Dec. 15, 2014  HITLAB ... Good Clinical Practices (GCP) audit to confirm its ... (FDA) regulations. This accomplishment enables HITLAB to conduct ... utilizing the highest principles for patient safety and ... improve global healthcare access, quality, and delivery with ...
(Date:12/17/2014)... 16, 2014  Automation is fundamentally transforming the ... than at international borders. Over the past decade, ... allowed veteran travelers to self process through border ... Kiosks at an increasing number of airports, seaports, ... According to Maxine Most , Principal ...
Breaking Biology News(10 mins):LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 2LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 3HITLAB Completes GCP Audit for FDA Smart Device & App Compliance 2Automated Border Control (ABC) Transforms the Global Travel Experience With More Than 2500 ABC eGates and APC Kiosks Deployed In Airports, Seaports, and Land Borders Worldwide 2
... of vocal mimicry, researchers from the Wildlife Conservation Society (WCS) ... cat species imitating the call of its intended victim: a ... the first recorded instance of a wild cat species in ... extraordinary behavior was recorded by researchers from the Wildlife Conservation ...
... leave the pediatrician,s office if your child has strep ... treatment. A novel application for applying DNA "nanobarcodes" ... and more accurately determine what,s causing a patient,s acute ... R. Hartman, a Cornell University PhD candidate in Biological ...
... Elsevier, a world leader in health care, medical publishing ... Legacy Interactive, announced today the release of Top Doc, ... designed to let medical students, residents and junior faculty ... and Legacy Interactive developed the app,s interactive format to ...
Cached Biology News:Wildlife Conservation Society finds wild cat mimicking monkey calls 2Instant testing for sore throats wins CIMIT prize 2Instant testing for sore throats wins CIMIT prize 3Instant testing for sore throats wins CIMIT prize 4Elsevier and Legacy Interactive partner to launch iPhone app 2
(Date:12/17/2014)... York, NY (PRWEB) December 16, 2014 ... significant changes since 2013, which is why IBISWorld updated ... this industry continues to benefit from an intensified focus ... the proposal for new emission standards for power plants ... industry operators. According to IBISWorld Industry Analyst Sarah Kahn, ...
(Date:12/17/2014)... Washington, USA (PRWEB) December 16, 2014 ... Baum, manager at Philipps- Universität Marburg’s Department of ... and photonics, in the newly released SPIE ... “And never be too shy to ask questions.” ... (science, technology, engineering, and mathematics) occupations ranging from ...
(Date:12/17/2014)... (PRWEB) December 17, 2014 Ipsen ... IPN; ADR: IPSEY), today announced that ... to as Somatuline®) was approved by the U.S. ... of gastroenteropancreatic neuroendocrine tumors (GEP-NETs) in adult patients ... or metastatic disease to improve progression-free survival (PFS). ...
(Date:12/17/2014)... December 17, 2014 This report ... Quartz Tubing industry. For an overview analysis, the ... application, industry chain structure, industry overview, policy analysis, ... tubing industry has witnessed rapid development with ... of acquisitions. This report mentions quartz tubing upstream ...
Breaking Biology Technology:Activated Carbon Manufacturing in the US Industry Market Research Report Has Been Updated from IBISWorld 2Activated Carbon Manufacturing in the US Industry Market Research Report Has Been Updated from IBISWorld 3Network, Multitask, Persevere: SPIE Women in Optics Planner Subjects Share from Experience 2Network, Multitask, Persevere: SPIE Women in Optics Planner Subjects Share from Experience 3Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 2Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 3Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 4Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 5Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 6Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 7Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 82020 Quartz Tubing Market: Global Development & Forecasts Analysis Now at DeepResearchReports.com 2
... Company to Provide Business Systems and Technology Support to NIH Office ... ... 5 SRA International, Inc.,(NYSE: SRX ), a leading provider ... has been,awarded a competitive task order to provide a broad range ...
... Oct. 5 The Coalition for a,Competitive Pharmaceutical ... Food and Drug Administration,s announcement regarding its,"Generic Initiative ... employers, insurers, and policymakers grappling with,how to manage ... FDA,and Congress continue to focus on ways to ...
... Lexicon,Pharmaceuticals, Inc. (Nasdaq: LXRX ) today announced ... executive officer, will present,at the BIO InvestorForum at The ... 2007 at 11:00 a.m. Pacific Time. A live ... website at http://www.lexpharma.com . An archived version of ...
Cached Biology Technology:National Institutes of Health Awards $25.5M Contract to SRA 2CCPM Issues Statement on FDA's GIVE Initiative 2Lexicon Pharmaceuticals to Present at Bio InvestorForum 2
... The RapidCycler is the first instrument ... reactions and is used by thousands of ... Roche LightCycler Capillary tubes which are ideally ... their thin walls and extremely high surface-area-to-volume ...
... of human cullin genes (CUL-1, -2, -3, -4a, -4b, ... Cullin-3 is proposed to be a part of E3 ... E and targets it for ubiquitination, which leads to ... of cdk2, which leads the cell to S phase. ...
Yellow oily liquid. Contains 85% Drakeol 5NF, 15% Arlacel A (mannide monooleate emulsifier). Heat sterilized. Contains zero colony forming units/ml. ...
... LED produces output at 470 nm; includes interface ... S2000 or installed into rack or desktop boxes ... Source is an LED that produces either pulsed ... blue region -- for fluorescence measurements. The source ...
Biology Products: