TLS Online TPP Program

#Question id: 15448


Stimulation of a single B cell would result in the generation of a clone of cells having_____

#Unit 4. Cell Communication and Cell Signaling
  1. All receptors on a single B cell have shown different  specificity for antigen.
  2. Daughter cells within each clone would not be able to secrete large amounts of antibody to neutralize the pathogen
  3. Clone of cells having the identical receptor as the parental B cell
  4. these clones would migrate to, and function within, the primary as well as secondary lymphoid organs
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TLS Online TPP Program

#Question id: 3463

#Unit 11. Evolution and Behavior

Which one of the following statements is INCORRECT?

TLS Online TPP Program

#Question id: 4716

#Unit 11. Evolution and Behavior

Which of the following is correct match?

AWallaceI Changes in allele frequency due to random genetic drift
BSewall WrightII Evolution by natural selection
CCarl WoeseIII hybrid sterility
DHaldane's ruleIV DNA sequencing led to molecular phylogenetics

TLS Online TPP Program

#Question id: 3508

#Unit 11. Evolution and Behavior

In these cases, females would indirect benefit by choosing the male that having which of following attribute 

a. can provide the best care

b. provide no care, but maintain territories

c. Large males, have probably been successful at living long, acquiring a lot of food and resisting parasites and disease

d. The long tail of the peacock

TLS Online TPP Program

#Question id: 3507

#Unit 11. Evolution and Behavior

Rank the following from most general to most specific:

A. gametic isolation

B. reproductive isolating mechanism

C. pollen-stigma incompatibility

D. prezygotic isolating mechanism

TLS Online TPP Program

#Question id: 3506

#Unit 11. Evolution and Behavior

An altruist provides help worth 9 units of fitness to a recipient, at a personal cost of 2 unit of fitness. As per kin-selection theory, the minimum value of genetic relatedness between the actors and the recipients that is necessary to maintain altruism in the population is

TLS Online TPP Program

#Question id: 3505

#Unit 11. Evolution and Behavior

Patterns of relatedness are different in hymenopterans, which are haplodiploid. Which of the following value of relatedness R1, R2, R3 and R4 respectively in figure?