#Question id: 4528
#Unit 3. Fundamental Processes
Promoters for Pol II typically have a TATA box and Inr sequence, as well as multiple binding sites for transcription activators. The latter sites, sometimes located hundreds or thousands of base pairs away from the TATA box, are called
#Question id: 23686
#Unit 13. Methods in Biology
#Question id: 13026
#Unit 13. Methods in Biology
#Question id: 10334
#Unit 6. System Physiology – Plant
N2 combines with hydrogen to form ammonia under elevated temperature (about 200°C) and high pressure (about 200 atmospheres) and in the presence of a metal catalyst (usually iron). The extreme conditions are required to overcome the high activation energy of the reaction. This nitrogen fixation reaction, called
#Question id: 3461
#Unit 11. Evolution and Behavior
the most common way that altruism between related individuals evolves and results from