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Signs in Biological Definition

Cancer

... Contents showTocToggle("show","hide") 1 signs and symptoms 2 Types of cancer 2.1 ... 11 References 12 External links signs and symptoms While advanced cancer may cause ... often an inexpensive, noninvasive procedure. If signs of cancer are detected, more definitive and ...

Diabetes mellitus

... 2.6 Genetics 3 Diagnosis 3.1 signs and symptoms 3.2 Diagnostic approach 3.3 ... connections are unknown. Diagnosis signs and symptoms Type 2 diabetes almost always has ... unrecognized diabetes, and less commonly (3) new signs and symptoms attributable to the diabetes. ...

Patau syndrome

... the person has a partial trisomy for chromosome 13 and often the physical signs of the syndrome differ from the typical Patau syndrome. Most cases of ... there is no extra material from chromosome 13. Although they do not have signs of Patau syndrome, people who carry this type of balanced translocation ...

Albinism

... inherit an "albinism gene " from both parents. Where an individual receives one albinism gene and one normal gene, that person will not show outward signs of the condition, but will become a carrier of the recessive gene . Where two carriers of the recessive gene have a child together, that child ...

Charles Darwin

... as if he had the eyes of Lyell . He discovered fossils of gigantic extinct South American Megatheriums and Armadillos in strata which showed no signs of catastrophy or change in climate, and found later that these were relatives of creatures still living in the area. Argentinian Rheas , and ...

Edward's syndrome

... from chromosome 18 attached to another chromosome. With a translocation, the person has a partial trisomy for chromosome 18 and often the physical signs of the syndrome differ from the typical Edward's syndrome. External link For more information, stories, support and hope, visit the Trisomy ...

Experimental evolution

... - 1886 ). Dallinger slowly increased the temperature of the incubator from an initial 60 °F up to 158 °F. The early cultures had shown clear signs of distress at a temperature of 73 °F, and were certainly not capable of surviving at 158 °F. The organisms Dallinger had in his incubator at ...

Foot and mouth disease

... of the heart muscle) and death, especially in newborn animals. Some infected animals remain asymptomatic, that is, they do not suffer from or show signs of the disease; but they are carriers of FMD and can transmit it to others. Infection with foot-and-mouth disease tends to occur locally, that ...

Lambda phage

... gets duplicated with every cell division of the host. The DNA of the prophage that is expressed in that state codes for proteins that look out for signs of stress in the host cell. Stress can be a result of starvation, poisons (like antibiotics), and other factors that can damage or destroy the host. ...

Life

... not grow and cannot reproduce outside of a host cell. Biologists who are content to focus on terrestrial organisms often note some additional signs of a "living organism", including these: Living organisms contain molecular components such as: carbohydrates , lipids , nucleic acids , ...

Oswald Avery

... deoxyribonuclease enzyme which removed the DNA. After this treatment, the R strain bacteria no longer transformed, as evidenced by mice not showing signs of pneumonia when injected with the bacteria. This indicated that DNA was the carrier of genes in cells. Avery wrote in a letter to his brother, ...

Phage

... DNA of the host cell. They do not kill the cell, but monitor ( via some proteins they code for) the status of their host. When the host cell shows signs of stress (meaning it might be about to die soon), the endogenous phages become active again and start their reproductive cycle, resulting in the ...

Protein

... animal nutrition." Investigation of proteins and their properties had been going on since about 1800 when scientists were finding the first signs of this, at the time, unknown class of organic compounds. See also Biochemistry Crystallography Denatured protein Intein ...

Twin

... the case. Twins establish their own individual likes and dislikes. This is not to say they are totally different, but there are usually obvious signs of differences when the identical twins are observed separately or together. Mixed sex identical twins In extremely rare cases, identical ...

Unsolved problems in biology

... What are the effects of natural electric fields? Viruses / Immune system . What causes immune system deficiencies ? What are the signs of current or past infection to discover where Ebola hides between human outbreaks? What is the origin of antibody diversity ? What leads to the ...

Astrobiology

... topic in xenobiology is the Fermi paradox , which suggests that if intelligent life is common in the universe then there should be obvious signs of it. Xenobiology also figures in much science fiction as the fictional science of the biology of alien organisms. This use of the term ...

X chromosome

... (whether a person has the sexual characteristics of a male or a female), sexual development, and the ability to have children (fertility). The signs and symptoms of these conditions vary widely and may range from mild to severe. They can be caused by missing or extra copies of the sex chromosomes ...

Y chromosome

... (whether a person has the sexual characteristics of a male or a female), sexual development, and the ability to have children (fertility). The signs and symptoms of these conditions vary widely and range from mild to severe. They can be caused by missing or extra copies of the sex chromosomes or ...
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(Date:11/25/2009)...lifetime, the heart pumps some 250 million liters ..., the muscle fibers of the heart have to be extrem...gang Rottbauer, vice chair of the Department of Me...rman: Prof. Dr. H. A. Katus), has discovered a pro...smallest muscular unit, the sarcomere. In cooperat...
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