What is FISH (fluorescence in situ hybridization)?

FISH (fluorescence in situ hybridization) is a cytogenetic technique developed by Christoph Lengauer that is used to detect and localize the presence or absence of specific DNA sequences on chromosomes. FISH uses fluorescent probes that bind to only those parts of the chromosome with which they show a high degree of sequence similarity. Fluorescence microscopy can be used to find out where the fluorescent probe bound to the chromosomes. FISH is often used for finding specific features in DNA for use in genetic counseling, medicine, and species identification. FISH can also be used to detect and localize specific mRNAs within tissue samples. In this context, it can help define the spatial-temporal patterns of gene expression within cells and tissues.

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22" Arowana Eating Mouse 12" Oscars eating goldfish

22" Arowana eating a mouse then oscars eating some goldfish silver arowana, red, tiger, albino oscars. This is my freshwater tank that is 125 gallons.This arowana is very large, he eats about 10 extra large goldfish a week. The oscars have also eaten mice in the past. Their diet consists of food pellets, goldfish, frogs, mice, pinkies, and also sometimes birds (video coming soon) aruanas, arawanas, aruana, arawana are freshwater bony fish of the family Osteoglossidae, sometimes known as "bony tongues." In this family of fishes, the head is bony and the elongate body is covered by large, heavy scales, with a mosaic pattern of canals. The dorsal and the anal fins have soft rays and are long based, while the pectoral and ventral fins are small. The name 'bony tongues' is derived from a toothed bone on the floor of the mouth, the 'tongue', equipped with teeth that bite against teeth on the roof of the mouth. The fish can obtain oxygen from air by sucking it into the swim bladder, which is lined with capillaries like lung tissue. The arapaima is an "obligatory air breather" .....

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Man Catches Incredible Rare Barking Shark!

Shark bark like a dog?



Awesome! Take your time to view this funny video...