Which subunit of the E. coli core RNA polymerase (a2bbʹw) contributes to DNA binding?

A) a                 B) b                 C) bʹ                D) w

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#Question id: 11065

#7. System Physiology – Animal

A liquid-ventilated lung compared to a gas-ventilated lung

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#Question id: 2628

#2. Cellular Organization

Choose true statement about lac repressor;

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#Question id: 69

#1. Molecules and their Interaction Relevant to Biology

Which of the following is the diastereomer of the following compound?

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#Question id: 3286

#11. Evolution and Behavior

 In a human population, the gene frequencies of the alleles for the ABO system are as follows:

A = 29%                         B = 7%                                    0=64%

Assuming complete random mating and Hardy-Weinberg equilibrium,

What are the blood type A frequencies in this population?

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#Question id: 20847

#12. Applied Biology

In groundwater hydrocarbon spill which metal reduction was the major electron accepting process?