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TLS Online TPP Program

#Question id: 2043

Which of the following statements is TRUE of antigenic competition?

#Unit 4. Cell Communication and Cell Signaling

  1. Antigenic competition involves competition between T-cell epitopes for the MHC groove

  2. Antigenic competition is initiated at the pre-T cell stage

  3. Antigenic competition is unrelated to the concept of dominant and subdominant epitopes

  4. Antigenic competition can only occur with cryptic epitopes

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TLS Online TPP Program

#Question id: 26904

#Unit 10. Ecological Principles

Ecologist has proposed following explanation to lead biodiversity at tropic.
a.Higher productivity in the tropics allows for more species
b)  Environments are more stable and predictable in the tropics, with fairly constant temperatures and rainfall levels year-round
c) Predators and pathogens limit competition in the tropics, which allows more species to coexist
d) High evolutionary speed at tropic than temperate
TLS Online TPP Program

#Question id: 26905

#Unit 10. Ecological Principles

The IUCN Red List is based on a set of criteria to evaluate species vulnerability to extinction. Which one or more of the options is/are used as criteria?
.Absolute population size
Geographic range
Economic value
Change in population size over time
TLS Online TPP Program

#Question id: 26906

#Unit 10. Ecological Principles

Match the Indian Biosphere reserves (Column P) with the key fauna (Column Q) they are intended to protection

 Column P (Biosphere Reserve) Column Q (Key fauna)
 A. Gulf of Mannar (i) Musk deer
 B. Dihang-Dibang (ii) Saltwater crocodile
 C. Great Nicobar (iii) Dugong
 D. Seshachalam Hills (iv) Lion-tailed macaque 
 E. Nilgiri Biosphere Reserve (v) Slender loris
 Which one of the following options has all correct matches between column P and Q?
TLS Online TPP Program

#Question id: 26907

#Unit 10. Ecological Principles

Soil that are said to be humus poor ____A____ and those soil that are said to be humus rich ___ B______.
TLS Online TPP Program

#Question id: 26908

#Unit 10. Ecological Principles

Many animals obtain their amino acids from the food they eat, though plants contain only small amount of amino acids, which types of animals has the capacity to synthesizes missing amino acids?
TLS Online TPP Program

#Question id: 26909

#Unit 10. Ecological Principles

Organic matter is limited at one particular horizon layer and not found in other layer at which horizon layer has organic matter is limited?