Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 1977
TLS Online TPP Program

#Question id: 2002

What accounts for antibody switching (i.e., the switch of one B cell from producing one class of antibody to another antibody class that is responsive to the same antigen)?

#Unit 4. Cell Communication and Cell Signaling

  1. the shuffling of exons for one C region type to another attached to the V-J transcript

  2. the rearrangement of V region genes in that clone of responsive B cells

  3. a switch in the kind of antigen-presenting cell that is involved in the immune response

  4. a patientʹs reaction to the first kind of antibody made by the plasma cells

More Questions
TLS Online TPP Program

#Question id: 28085

#Unit 6. System Physiology – Plant

The statements given below are related to CP43 and CP47   
(a) CP43 located near D2 while D1 located near CP47
(b) CP43 located near D1 while D1 located near CP42
(c) CP43 and CP47, bind core antenna pigments
(d) CP43 and CP47, do not bind core antenna pigments
Which of the following is incorrect 
TLS Online TPP Program

#Question id: 4302

#Unit 3. Fundamental Processes

Which one of the following proteins is involved in promoter recognition in eukaryotes?
TLS Online TPP Program

#Question id: 24486

#Unit 3. Fundamental Processes

Splicing is an …………reaction that proceeds through a pentavalent phosphorous intermediate.
TLS Online TPP Program

#Question id: 18013

#Unit 13. Methods in Biology

Each of five questions on a multiple-choice examination has four choices, only one of which is correct. The student is attempting to guess the answers. The random variable X is the number of questions answer correctly. Probability that the student will get At least one correct answer.
TLS Online TPP Program

#Question id: 9240

#Unit 9. Diversity of Life Forms

Use the following figure to answer the question.


Looking at the figure, what can you conclude about the data?