Targeted gene knockouts involve the deletion or disruption of a given gene. what method might be effectively used to knock out a gene in yeast? what method might be used in mice? why would the method used in yeast be ineffective in mice?

In order to determine the function of an unknown gene knockout technique is used. PCR based deletion strategy is used for gene knockout in the case of yeast, which is unicellular species and eukaryotic. On the other hand, in the case of a mouse, which is multicellular and eukaryotic, for gene knock out homologous recombination technique is used.  

The PCR based strategy is not appropriate for mice genes knockout, as mice are multicellular species and exhibit complex genome. While yeast constitutes some circular plasmids, known as 2 microns plasmids, which allows PCR based mutagenesis.  

question: which statement best describes the different properties of metals?

answer: they are shiny and bend without breaking.

since metals have certain characteristics properties, they include the following: they are ductile, malleable, shiny, hard, lustrous, flexible and they are good conductor of heat and electricity. so therefore, metals are not dull and they are not non-flexible as listed. instead, they are shiny and flexible.

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