Navigation Links
Lineage in Biological Definition

Parthenogenesis

... produce offspring. This means that an asexual lineage will have roughly double the rate of population ... particularly defenseless against it, an asexual lineage is more likely to be completely wiped out by it. In contrast, a lineage that reproduces sexually has a higher probability ...

Species

... a group of organisms that shares an ancestor; a lineage that maintains its integrity with respect to ... species concept. Both agree that a species is a lineage that maintains its integrity over time, that is ... it), is reproductively isolated (else the lineage would merge into others, given the chance to do ...

Apoptosis

... in genetics and in the development of the nervous system, but cell lineage and differentiation inevitably led to the study of cell fate: "One aspect of the cell lineage particularly caught my attention: in addition to the 959 cells generated ...

Human

... difference of less than 1 per cent. It has been estimated that the human lineage diverged from that of chimpanzees about five million years ago, and from ... seven million years old already showing a divergence from the ape lineage suggests an earlier divergence. Human evolution is characterized by a ...

Alga

... 70 m in length ( kelps )—the red algae , and the green algae . The most complex forms are found among the green algae (see Charales ), in a lineage that eventually led to the higher land plants. The point where these non-algal plants begin and algae stop is usually taken to be the presence of ...

Bone

... They contain alkaline phosphatase - a chemical which has a role in the mineralisation of bone. Bone Lining Cells (BLCs) share a common lineage with osteogenesis (bone forming) cells. They function as a barrier for certain ions, induced osteogenetic cells. They are flattened, mononucleate ...

BLAST

... faster. Examples of other questions that researchers use BLAST to answer are Which bacterial species have a protein that is related in lineage to a certain protein whose amino-acid sequence I know? Where does the DNA that I've just sequenced come from? What other genes encode ...

Cryptozoology

... fossil " believed to have been extinct for 65 million years, was caught in a fishing net in 1938 off the coast of Africa . Of an even older lineage than the coelacanth are the Graptolites . Living representatives were first found in 1882 , although the group had previously been presumed to have ...

Endosymbiont

... Bacterial endosymbionts in echinoderms: Subcuticular bacteria from the brittle star Ophiactis balli (Echinodermata: Ophiuroidea) represent a new lineage of extracellular marine symbionts in the alpha subdivision of the class Proteobacteria. Burnett, W J and J D McKenzie ...

Endosymbiont

... Bacterial endosymbionts in echinoderms: Subcuticular bacteria from the brittle star Ophiactis balli (Echinodermata: Ophiuroidea) represent a new lineage of extracellular marine symbionts in the alpha subdivision of the class Proteobacteria. Burnett, W J and J D McKenzie ...

Evolution

... . Some fossils bear a resemblance to organisms alive today, while others are radically different. Fossils have been used to determine at what time a lineage developed, and can be used to demonstrate the continuity between two different lineages through transitional fossils . Paleontologists ...

HeLa

... do not die of old age and can divide an unlimited number of times, unlike most other human cells), and have been grown in cell culture in an unbroken lineage ever since. This cell line was propagated for use in cancer research . Initially, the cell line was said to be named after a "Helen Lane", in ...

Alga

... 70 m in length ( kelps )—the red algae , and the green algae . The most complex forms are found among the green algae (see Charales ), in a lineage that eventually led to the higher land plants. The point where these non-algal plants begin and algae stop is usually taken to be the presence of ...
Other Contents
(Date:4/15/2014)... Biologists at UC San Diego have succeeded in ... hormone responsible for growth and resistance to drought. ... studies to determine how the hormone helps plants ... by the continuing increase in the atmosphere,s carbon ... achievement appears in the April 15 issue of ...
(Date:4/15/2014)... have found a less invasive way to extract ... study how the mouth,s natural defenses ward off ... immune cells (white blood cells known as "leukocytes") ... mouthor reject foreign tissues, such as in failed ... and preventing such health issues as oral cancers, ...
(Date:4/15/2014)... (KNAW) has announced the names of five internationally renowned ... million US dollars prize money in total). The laureates ... science. , This year marks the 50th anniversary of ... Erwin Chargaff in 1964. , KNAW juries have ... , Christopher M. Dobson, John Humphrey Plummer ...
Breaking Biology News(10 mins):Biologists develop nanosensors to visualize movements and distribution of plant hormone 2New method isolates immune cells for researchers to study how they ward off oral diseases 2Five scientists awarded prestigious Heineken Prizes 2
(Date:4/14/2014)... orphaned by HIV/AIDS in South Africa may provide insight ... behavior issues in other areas of the world, which ... that could lead to successful interventions. , A ... United Nations mentions that due to the HIV/AIDS pandemic, ... African, children are at an increased risk for mental ...
(Date:4/14/2014)... A new study shows that moderate to severe ... risk of stroke, cancer and death. , Results of ... to severe obstructive sleep apnea were four times more ... times more likely to have a stroke (HR = ... (HR = 3.4), and 2.5 times more likely to ...
(Date:4/14/2014)... Dallas study involving serious youth offenders, the answer to one ... seven years: "How long do you think you,ll live?", According ... offending over time., Author Dr. Alex Piquero said the study ... of them offend at very high rates and commit more ... much later in life offend much less., "In a lot ...
(Date:4/14/2014)... with symptoms increasing dramatically during some of the most important ... has found. , Depressive symptoms increased on average by 68 ... young men, who were around 25 years old when they ... their children. The results of the study were published April ... is the first to identify when young fathers are at ...
(Date:4/14/2014)... Lower weight babies and babies who aren,t breastfed ... risk of developing chronic inflammation and related health ... study. , "There were good reasons to hypothesize ... inflammation in adulthood," says Thomas McDade (Northwestern University), ... in the Child & Brain Development program. "It ...
Breaking Medicine News(10 mins):Health News:Researchers identify children with emotional behavior difficulties 2Health News:Researchers identify children with emotional behavior difficulties 3Health News:Study links severe sleep apnea to increased risk of stroke, cancer and death 2Health News:UT Dallas study: Youth who fail to envision future commit more crimes 2Health News:Young dads at high risk of depression, too 2Health News:Low birth weight, less breastfeeding create later health risks 2
Other TagsOther Tags