There is a mutation that is found in E. coli in the repressor that results in a molecule known as a super-repressor because it represses the lac operon permanently. Which of the following characteristics would you expect to observe in such a mutant?

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Which of the following metal ions plays an important role in muscle contraction?

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#Question id: 19545

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The correct order sequence of of the increasing covalent character is:

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#Question id: 19546

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Which of the following alkaline earth metal ions has the highest ionic mobility in aqua solution?

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#Question id: 19547

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Which one of the alkali metals form only the normal oxide M2O on heating in air?

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#Question id: 19548

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As the alkaline earth metal (except Be) tend to lose their valence electron readily they act as:

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#Question id: 19549

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The alkaline earth metal present in chlorophyll is ———–