Chest pain and shortness of breath if blood clots form in the blood vessels in your lungs and heart. Pain, redness, warmth, and swelling in the lower leg if blood clots form in the deep veins of your leg. Headaches, speech changes, paralysis (an inability to move), dizziness, and trouble speaking and understanding if blood clots form in the blood vessels in your brain. These signs and symptoms may indicate a stroke.
From Wikipedia, the free encyclopedia. A gene knockout (abbreviation: KO) is a genetic technique in which one of an organism 's genes is made inoperative (knocked out of the organism). knockout mouse (left) that is a model of obesity, compared with a normal mouse. A conditional knockout allows gene deletion in a tissue or time specific manner. This is done by introducing short sequences called loxP sites around the gene.
Gene knockout A gene knockout is a genetically engineered organism that carries one or more genes in itschromosomes that have been made inoperative (have been knocked out of the organism). This isdone for research purposes.Gene knockout in rats is much harder and has only been possiblesince 2003.)UseKnocking out the activity of a gene provides information about what that gene normally does.Humans share many genes with mice.