Specimen in Biological Definition

Aseptic technique in microbiology

... which, and the closed tube or flask to which the specimen is to be transferred, an innoculating loop , and ... not allow the loop to touch anything except the specimen itself, until the entire procedure is finished. Preparing to execute the specimen transfer, the person would hold both of the tubes ...

Blood plasma

... as citrate or heparin is added to the blood specimen immediately after it is obtained. (Usually the ... or Vacuette) when the patient is bled .) The specimen is then centrifuged to separate plasma from ... factors. It is obtained by letting a blood specimen clot prior to centrifugation. For this purpose, ...

Cancer

... finding a benign or malignant tumor, microscopic examination of a biopsy specimen will sometimes detect a condition called "hyperplasia". Hyperplasia ... In addition to hyperplasia, microscopic examination of a biopsy specimen can detect another type of noncancerous condition called "dysplasia." ...

Alexander Fleming

... which led to be to his advantage. In September 1928 , he was sorting through the many idle experiments strewn about his lab. He inspected each specimen before discarding it and noticed an interesting fungal colony had grown as a contaminant on one of the agar plates streaked with the bacterium ...

Fungus

... is still used against Streptococcus and other very dangerous germs. The world's largest organism is a fungus: Armillaria ostoyae , the largest specimen spanning 8.9 square kilometres (2200 acres) in area. Other fungi include: Puffball (a type of mushroom ) Yeast Mold Mildew ...

Homunculus

... film Bride of Frankenstein , Dr. Frankenstein's old teacher, Dr. Praetorius, shows him his own creations, a series of miniature humanoids kept in specimen jars, including a bishop, a king, a queen, a ballerina, a mermaid , and a devil . These are clearly intended to be forms of homunculi. In his ...

Restriction fragment length polymorphism

... compare DNA molecules. The technique is utilized in genetic fingerprinting and paternity testing . Method Usually, DNA from an individual specimen is first extracted and purified. Purified DNA may be amplified by Polymerase Chain Reaction (PCR). The DNA is then chopped into restriction ...