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The first genetically modified animal to be commercialised was the GloFish, a Zebra fish with a fluorescent gene added that allows it to glow in the dark under ultraviolet light. [31] It was released to the US market in 2003. [32] The first genetically modified animal to be approved for food use was AquAdvantage salmon in 2015. [33]
The " Montauk Monster " was an animal carcass that washed ashore on a beach near the business district of Montauk, New York, in July 2008. [1] [2] The identity of the creature and the veracity of stories surrounding it have been the subject of controversy and speculation. The corpse was eventually decided by experts to be that of a water ...
Pampa, a Jersey calf, was the first animal cloned in Argentina (by the company Bio Sidus) in 2002. [23] An Anatolian Grey bull (Efe) was cloned in Turkey in 2009 and four female calves from the same breed (Ece, Ecem, Nilüfer, Kiraz) in 2010 by the Scientific and Technological Research Council of Turkey (TÜBİTAK). [24]
The axolotl ( / ˈæksəlɒtəl / ⓘ; from Classical Nahuatl: āxōlōtl [aːˈʃoːloːtɬ] ⓘ) ( Ambystoma mexicanum) [3] is a paedomorphic salamander closely related to the tiger salamander. [3] [4] [5] It is unusual among amphibians in that it reaches adulthood without undergoing metamorphosis. Instead of taking to the land, adults remain ...
The stylets are lost when the animal molts, and a new pair is secreted from a pair of glands that lie on either side of the mouth. The pharynx connects to a short esophagus , and then to an intestine that occupies much of the length of the body, which is the main site of digestion.
B–E, Different mutants. [1] In biology, and especially in genetics, a mutant is an organism or a new genetic character arising or resulting from an instance of mutation, which is generally an alteration of the DNA sequence of the genome or chromosome of an organism. It is a characteristic that would not be observed naturally in a specimen.
Hairless Sphynx cat. Sphynx cat. a breed of cat known for its lack of fur. Hairlessness in cats is a naturally occurring genetic mutation and the Sphynx was developed through selective breeding starting in the 1960s. [11] This characteristic hairlessness is caused by a recessive mutation in the keratin 71 gene.
Mutagen. The international pictogram for chemicals that are sensitising, mutagenic, carcinogenic or toxic to reproduction. In genetics, a mutagen is a physical or chemical agent that permanently changes genetic material, usually DNA, in an organism and thus increases the frequency of mutations above the natural background level.