Trace elements are those required by an organism in only minute quantities. Which of the following is a trace element that is required by humans and other vertebrates, but not by other organisms such as bacteria or plants?

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#Question id: 20147

#XL - P Chemistry

The electrons present in K-shell of the atom will differ in

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#Question id: 12157

#XL - R Botany

Which of the following statements concerning protists is false?

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#Question id: 2174

#XL - S Microbiology

The major ATP-powered pump responsible for maintaining ion gradients across the plasma membrane of mammalian cells is:

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#Question id: 16498

#XL - R Botany

Chromosomal gene of agrobacterium needed for an optimal expression of vir genes of pTi

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#Question id: 15859

#XL - S Microbiology

The continuously growing callus cultures were established from___