Navigation Links
Marsupial embryo jumps ahead in development
Date:11/29/2010

e of its scarce number of early cells to building those structures, Smith said. The plans are in place for the hind limbs, but not the bricks to build them.

The embryo emerges from the mother with burly forearms that include bones and well developed muscles, while the hind limbs are small and rubbery.

Blind, hairless and with an incomplete brain, a marsupial embryo is shockingly underdeveloped to be living outside the womb. But the system obviously works for marsupials.

"There are probably 50 explanations for why marsupials develop outside the womb, and none of them are very good," Smith said. It's pretty clear however that the external development gives the female a lot more control over her reproduction. If conditions change or she runs out of food, the marsupial mother can easily terminate an external pregnancy.


'/>"/>

Contact: Karl Leif Bates
919-681-8054
Duke University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Researchers insert identification codes into mouse embryos
2. Snap of fruit fly embryo wins scientific photo competition
3. Earlier, more accurate prediction of embryo survival enabled by Stanford research
4. Auxogyn licenses noninvasive embryo assessment technology from Stanford University
5. Twins provide clue that genetic epilepsy can originate in the embryo
6. Research!America asks Congress to support embryonic stem cell research now
7. Test-tube calf embryos more likely to survive Texas summers
8. Congressman, CSHL president urge quick action to reverse judicial embryonic stem cell research ban
9. What makes a good egg and healthy embryo?
10. Digital embryo gains wings
11. New measurement of telomeres; DNA could help identify most viable embryos for IVF
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/15/2014)... animalsto thrive in the oceans, there must be ... coastal areas, extreme oxygen-starvation produces "dead zones" that ... As dissolved oxygen levels decline, energy is increasingly ... metabolism resulting in impacts on the ecology and ... 50 years, oxygen minimum zones (OMZs) have expanded ...
(Date:9/15/2014)... scientists from GEOMAR Helmholtz Centre for Ocean Research ... have demonstrated for the first time, that the ... oceans, Emiliania huxleyi , can adapt simultaneously ... their study, the researchers found no evidence for ... two aspects of climate change would interfere with ...
(Date:9/15/2014)... 100 feet long and weighing as much as 170 tons, ... and by far the heaviest living thing ever seen on ... common with the tiniest fish larvae, which measure millimeters in ... gram, right? , Not so fast, says L. Mahadevan, ... Organismic and Evolutionary Biology, and of Physics. , Using ...
Breaking Biology News(10 mins):Decoding virus-host interactions in the oxygen-starved ocean 2Decoding virus-host interactions in the oxygen-starved ocean 3Decoding virus-host interactions in the oxygen-starved ocean 4Decoding virus-host interactions in the oxygen-starved ocean 5Small algae with great potential 2Small algae with great potential 3The science behind swimming 2The science behind swimming 3
... often simply called lupus, is a complex autoimmune ... fatigue, and depression, among other symptoms. Some studies ... severe psychiatric manifestation, psychosis, and a protein autoantibody ... , To investigate how an autoantibody ...
... continue to debate how different species manage to ... as food, invariably one will be more efficient ... that each species has evolved morphological or physiological ... more efficiently than all other species. Such partitioning ...
... Genetics tests could help provide cystic fibrosis (CF) ... authors suggest. Results from a French clinical trial ... small percentage of CF sufferers with a rare ... , Aleksander Edelman and Isabelle Sermet-Gaudelus of Faculté ...
Cached Biology News:New insights into autoimmunity and depression 2Virtual duck bills demonstrate species coexistence 2
(Date:9/15/2014)... University have developed a technique for controlling the surface ... opening the door to a new generation of reconfigurable ... on the fact that the oxide "skin" of the ... acts as a surfactant, lowering the surface tension between ... used a liquid metal alloy of gallium and indium. ...
(Date:9/15/2014)... The very idea of fibers made of carbon nanotubes is ... literally. , The single-walled carbon nanotubes in new fibers created ... through a process designed by chemist Angel Mart and his ... reported its results this month in the journal ACS ... they,re drawn together into a fiber. , Left to their ...
(Date:9/15/2014)... Bioptigen announced today the ... for the optical device metrology and pre-clinical ophthalmic research ... for Contact Lens Metrology is designed for non-destructive, ... contact lens, IOL structures, and donor tissues. ... lens immersed in a hydration bath (saline), automated segmentation ...
(Date:9/15/2014)... BOISE, Idaho , Sept. 15, 2014  iVinci ... and only comprehensive Patient Revenue Management system, branded as ... The company also announced the launch of a new ... Portal that provides an easy and convenient way for ... plans for balances owed by them and their families. ...
Breaking Biology Technology:Researchers control surface tension to manipulate liquid metals 2Rice rolls 'neat' nanotube fibers 2Rice rolls 'neat' nanotube fibers 3Bioptigen Introduces Deep Imaging OCT System for Contact Lens Metrology 2iVinci Health Raises $5M to Fuel National Expansion, Announces Launch of Personal Finance Portal for Healthcare 2iVinci Health Raises $5M to Fuel National Expansion, Announces Launch of Personal Finance Portal for Healthcare 3
... High Quality Digital Imaging Solution Now Available in ... Medical Systems, a leading supplier of digital radiography ... and practice management software (VIA(R)), will showcase its ... RapidStudy(TM) DR imaging solutions at the annual Central ...
... April 22 GeneGo, Inc., a leading provider of ... analysis , today announced that the University of Cardiff ... University researchers will have access to GeneGo,s MetaCore, training ... leverage their partner relationship with GeneGo to provide a ...
... The PharmSource ADVANTAGE online service has added two new capabilities ... providers. , ... Fairfax, Virginia (PRWEB) ... provider of business intelligence on contract drug development and manufacture, ...
Cached Biology Technology:Eklin Medical Systems to Showcase RapidStudy(TM) CDx Digital Radiography Systems at CVC East 2Eklin Medical Systems to Showcase RapidStudy(TM) CDx Digital Radiography Systems at CVC East 3Cardiff University Becomes a GeneGo Center of Excellence 2PharmSource Adds New Capabilities to the PharmSource ADVANTAGE Online Service 2
... that enables fully automated hybridization of microarrays ... has been designed to offer researchers improved ... to perform a wide range of applications. ... range 485C; denaturations of up to 99C. ...
... cDNA Synthesis and Labeling Kit generates labeled ... First unmodified cDNA is made via a ... an Oligo(dT) primer. Unlike other methods, there ... the reverse transcription reaction. This unmodified cDNA ...
... Kits overcome this limitation and offer high ... range in low-density protein array (96- and ... ideal for performing reverse-phase protein arrays and ... presence of low abundant antigens. Protein Detector ...
AC input: 50-60 Hz230 V...
Biology Products: