The above Scatchard plots are based on repeated equilibrium dialyses with a constant concentration of antibody and varying concentration of ligand. In these plots, r equals moles of bound ligand/mole antibody and c is the concentration of free ligand, (Ka) is slope while intercept on x axis represent 

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#Question id: 4077

#Unit 3. Fundamental Processes

Which of the following is (are) associated with most polyadenylation events?

a. cleavage of the 5´ end of the RNA molecule

b. an assembly of a large, multiprotein complex

c. the AAUAAA site upstream of where polyadenylation will occur

d. a GU-rich or U-rich region near the cleavage site

e. slow addition of A residues followed by rapid addition of 200 to 250 more A residues

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#Question id: 15878

#Unit 12. Applied Biology

A vitamin which has been found to inhibit callus formation and improve growth and quality of shoots.

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#Question id: 17994

#Unit 8. Inheritance Biology

Consider a heritable autosomal disease with an incidence in the population of 1 per thousand. On average, individuals with the disease have 80% as many children as the population average. In answering the various parts of this question, assume that mating is random. What mutation rate would be required to maintain the observed incidence of the disease in the population if the disease is dominant?

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#Question id: 2816

#Unit 2. Cellular Organization

Which of the following mutations can result in a reduction of β-galactosidase?

a. a mutation in adenylate cyclase

b. a mutation in catabolite activator protein (CAP)

c. a mutation in the CAP site in the lac control region

d. a mutation in the repressor binding site in the operator

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#Question id: 14834

#Unit 5. Developmental Biology

Process by which a spatial and temporal pattern of cell activities is organized within the embryo so that a well-ordered structure develops: