The complete enzyme or holoenzyme in E. coli has a molecular weight of ,460 kD. The holoenzyme (a2bbws) can be separated into two components: the core enzyme (a2bbw) and the sigma factor (the s polypeptide), which is concerned specifically with promoter recognition.

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#Id: 2211

#Unit 11. Evolution and Behavior

Darwin’s evolutionary theory- Evolution as such is the simple proposition that the characteristics of organisms change over time.

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#Id: 10280

#Unit 6. System Physiology – Plant

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#Id: 9854

#Unit 6. System Physiology – Plant

Phototropins (phots) are involved in directing organ, chloroplast, and nuclear movements, solar tracking, and stomatal opening

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#Id: 1814

#Unit 10. Ecological Principles

Per capita rate of increase, r, related to the net reproductive rate, R₀

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#Id: 5809

#Unit 7. System Physiology – Animal

The outermost zone, called the zona glomerulosa, secretes mineralocorticoids.