The σ70 subunit in E. coli RNA polymerase acts as a/an __.

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#Question id: 429

#SCPH05 I Biotechnology

An organism that uses organic molecules as carbon sources and obtains energy by oxidizing inorganic molecules is a(an) ________.

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#Question id: 14497

#SCPH01 Biochemistry

In a throw of 3 dice the probability that at least one die shows up 1 is

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#Question id: 1696

#SCPH05 I Biotechnology

TCR recognition of peptide-MHC class II depends on:

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#Question id: 1743

#SCPH01 Biochemistry

The main costimulatory signal for activation of resting T-cells is provided by ligation of:

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#Question id: 1541

#SCPH05 I Biotechnology

Nonphagocytic cell of immune system,