Molecules that induce enzyme synthesis but are not metabolized are called gratuitous inducers such as IPTG

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#Id: 4645

#Unit 13. Methods in Biology

Tritiated (3H) Thymidine uptake used to assess Cell Division based on radioactivity measurement by scintillation counting. 

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#Id: 5571

#Unit 7. System Physiology – Animal

In juxtamedullary nephrons with longer loops and thin ascending limbs, the osmotic gradient is spread over a greater distance and the osmolality at the tip of the loop is greater.

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#Id: 1819

#Unit 10. Ecological Principles

r and λ relation 

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#Id: 6369

#Unit 2. Cellular Organization

When polymerase binding causes transition to the open complex and initiates transcription. This gives a low level of constitutive expression called the basal level.  Binding of RNA polymerase is the rate-limiting step in this case.

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#Id: 3516

#Unit 2. Cellular Organization

Two genes may share some related exons but also have unique exons.