Knockout

Knockout is a term used in various fields, most commonly in boxing and genetics, with different meanings in each context. In boxing, a knockout (often abbreviated to KO) refers to a fight-ending, winning criterion in several full-contact combat sports, such as boxing and kickboxing, among others. In genetics, a knockout is a genetic technique in which an organism is engineered to carry genes that have been made inoperative (have been "knocked out" of the organism).

Boxing

In boxing, a knockout (KO) is when a boxer is knocked down and cannot get up within a specified period, typically because of exhaustion, pain, disorientation, or unconsciousness. For a knocked down boxer to be declared as having been knocked out, the boxer must be unable to stand up from the mat within ten seconds, under their own power, when the referee counts out the ten seconds (a count of "ten").

Genetics

In genetics, a knockout is a genetic technique that involves the inactivation or "knocking out" of a gene. Knockout is used to study the function of a gene. Comparing the characteristics of the knockout organism to the characteristics of a normal, wild type organism allows researchers to infer the function of the gene that has been knocked out.

See also

• Technical knockout
• Knockdown (boxing)
• Gene knockout

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Knockout

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  Ingemar Johansson and Floyd Patterson, 1959

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  Muhammad Ali fights Brian London, August 6, 1966

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  Roman Hardok vs. Jakob Jakobi, 2017

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  Knockout

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  Knockout