Practice Questions

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#Question id: 3864

RNA polymerase:

#3. Fundamental Processes

binds tightly to a region of DNA thousands of base pairs away from the DNA to be transcribed.
can synthesize RNA chains de novo (without a primer).
has a subunit called lambda, which acts as a proofreading ribonuclease.
separates DNA strands throughout a long region of DNA (up to thousands of base pairs), then copies one of them.

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#Question id: 8897

#9. Diversity of Life Forms

Which of the following statements would be least acceptable to most zoologists?

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#Question id: 18902

#13. Methods in Biology

which of the following radioactive element Used to treat cancerous tumours

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#Question id: 9247

#9. Diversity of Life Forms

What is the single greatest threat to biodiversity?

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#Question id: 12373

#10. Ecological Principles

You are most likely to observe primary succession in a terrestrial community when you visit a(n)

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#Question id: 1572

#4. Cell Communication and Cell Signaling

function of IL-10