The dissociation constant Kd for a receptor-ligand complex is

a. a measure of the affinity of the receptor for the ligand.

b. the concentration of the ligand at which half of the receptors contain bound ligand.

c. a measure of the time it takes for a ligand to be converted to a product.

d. equal to koff/kon 

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#Question id: 3937

#XL - Q Biochemistry

Why was Neurospora a good organism for Beadle and Tatum's studies?

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#Question id: 12685

#XL - S Microbiology

The polarities of the two strands of the molecule are in opposite direction and thus DNA is described as ________

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#Question id: 787

#XL - T Zoology

Which of the following statement is INCORRECT with respect to the structure of DNA?

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#Question id: 1691

#XL - Q Biochemistry

What is the structure recognized by the αβ T-cell receptor on the cell surface of an antigen-presenting cell?

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#Question id: 5698

#XL - R Botany

A mechanism that can cause a gene to move from one linkage group to another is