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The International Knockout Mouse Consortium (IKMC) is a scientific endeavour to produce a collection of mouse embryonic stem cell lines that together lack every gene in the genome, and then to distribute the cells to scientific researchers to create knockout mice to study.
Conditional gene knockout is a technique used to eliminate a specific gene in a certain tissue, such as the liver. [1] [2] This technique is useful to study the role of individual genes in living organisms. It differs from traditional gene knockout because it targets specific genes at specific times rather than being deleted from beginning of life.
The mutations introduced in the ES Cells are conditional: this means that the initial mutation can be modified - by the application of particular DNA-altering enzymes (site specific recombinases) to make the knockout initially latent in the genome. The gene can be later knocked out (inactivated) at a specific time-point or tissue-type in mutant ...
A complete gene knockout permanently inactivates the gene, while a conditional gene knockout allows for the gene to be turned off and on at specific times or in specific tissues. Conditional knockouts are particularly useful for studying developmental processes and for understanding the role of a gene in specific cell types or tissues.
Bobcat urine repels moles, mice, voles and other rodents. Wolf urine is used to repel moose. Used cat litter is also effective. Domestic dogs can be repelled by vinegar. [4] Other repellents are not chemical. A simple electrified or barbed-wire fence can mechanically repel livestock or predator animals. Some electrical repellent systems have ...
repels insects, may deter cats [5] Clovers: repel aphids and wireworms [3] Common lantana: repels mosquitoes [1] Coriander: repels aphids, Colorado potato beetle, and spider mites [3] Cosmos: repel the corn earworm: Crown imperial: repel rabbits, mice, moles, voles and ground squirrels [6] Dahlias: repel nematodes [2] Dill
PHOTO CREDIT: AMAZON. Buy on Amazon. Method: Combine pumpkin puree, catnip, and flour to form a dough. Roll out and cut into cookie shapes. Bake at 350°F for 12 minutes until crisp.
Examples of research in which knockout mice have been useful include studying and modeling different kinds of cancer, obesity, heart disease, diabetes, arthritis, substance abuse, anxiety, aging and Parkinson's disease. Knockout mice also offer a biological and scientific context in which drugs and other therapies can be developed and tested.
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