Which technique is commonly used for gene knock-out in mice?

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#Question id: 10979

#Unit 7. System Physiology – Animal

Which of the following conditions at the A-V node will cause a decrease in heart rate?

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#Question id: 5439

#Unit 8. Inheritance Biology

Which of the following phenotypes is an example of polygenic inheritance?

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#Question id: 11278

#Unit 10. Ecological Principles

Which of the following is true with respect to oligotrophic lakes and eutrophic lakes?

A) Oligotrophic lakes are less subject to oxygen depletion.

B) Rates of photosynthesis are lower in eutrophic lakes.

C) Eutrophic lake water contains higher concentrations of nutrients.

D)Sediments in oligotrophic lakes contain larger amounts of decomposable organic matter.

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#Question id: 1411

#Unit 4. Cell Communication and Cell Signaling

A gain-of-function mutation in telomerase causes which of the following?

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#Question id: 12654

#Unit 6. System Physiology – Plant

unconjugated JA is hormonally active, many JA responses require activation of the hormone for optimal activity by conversion into an amino acid conjugate, such as