TLS Online TPP Program

#Question id: 1225


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 

#Unit 4. Cell Communication and Cell Signaling
  1. a & b

  2. a and c  

  3. a, b, and d

  4. Only d

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TLS Online TPP Program

#Question id: 17821

#Unit 13. Methods in Biology

is most frequently observed data value 

TLS Online TPP Program

#Question id: 17822

#Unit 13. Methods in Biology

Mode of 1,2,3,4,4,5 is  

TLS Online TPP Program

#Question id: 17823

#Unit 13. Methods in Biology

Mode of data 1,1,2,2,5,3,4,4 is 

TLS Online TPP Program

#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?

TLS Online TPP Program

#Question id: 17995

#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 recessive?

TLS Online TPP Program

#Question id: 17996

#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. Now assume that the mutation rate is zero, that the disease is recessive, and that the disease allele is maintained in the population by heterozygote advantage. Calculate the heterozygote advantage,