A recognition site frequency every 44 (256) bp, 46 (4096) bp and 48 (65 536) bp, if A=T=G=C.

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#Id: 558

#Unit 2. Cellular Organization

There are 4 genes (I, Z, Y, A), 2 Promoters and 3 lac operators in Lac operon

The major O1 lac operator lies adjacent to promoter

Two auxiliary O2 and O3 lac operators 

All three operators are required for optimum repression 

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#Id: 5774

#Unit 10. Ecological Principles

Difference is known as beta diversity, or β diversity

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#Id: 2899

#Unit 3. Fundamental Processes

Opening oriC involves action at two types of sequence in the origin: 9-bp and 13 -bp repeats.

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#Id: 5696

#Unit 7. System Physiology – Animal

The receptor for ADH on vascular smooth muscle  V1 receptor, which is coupled via a Galpha q protein

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#Id: 9276

#Unit 6. System Physiology – Plant

NodA is an N-acyltransferase that catalyzes the addition of a fatty acyl chain.

NodB is a chitin-oligosaccharide deacetylase that removes the acetyl group from the terminal nonreducing sugar.

NodC is a chitin-oligosaccharide synthase that links N-acetyl-D-glucosamine monomers.