A scientist finds that infusion of growth hormone into the median eminence of the hypothalamus in experimental animals inhibits the secretion of growth hormone and concludes that this proves that growth hormone feeds back to inhibit GHRH secretion. Do you accept this conclusion?

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#Question id: 18747

#Unit 13. Methods in Biology

These are steps taken in carrying out the PCR reaction:

i) Attaching of primers by cooling

ii) Denaturation of strands

iii) DNA synthesis

iv) Heating

Which is the correct order?

(Mentioned from starting to ending the reaction)

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#Question id: 1592

#Unit 4. Cell Communication and Cell Signaling

Which of these molecules is incorrectly paired with a source?

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#Question id: 4932

#Unit 11. Evolution and Behavior

Which of the following is the best hypothesis regarding origins of nucleic acids?

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#Question id: 26928

#Unit 10. Ecological Principles

Hutchinsonian niche is proposed by G. Evelyn Hutchinson, that basically based on

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#Question id: 2264

#Unit 2. Cellular Organization

Plants differ from animals in that plants have