TLS Online TPP Program

#Question id: 5275


 The designation his- refers to

#Unit 8. Inheritance Biology
  1. the genotype of a bacterium that lacks a functional gene for histidine synthesis.

  2. the genotype of a bacterium that has a functional gene for histidine synthesis.

  3. the opposite of a hers gene.

  4. the genotype of a bacterium that lacks a functional gene for histidine synthesis and bacteria that are auxotrophic for histidine.

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TLS Online TPP Program

#Question id: 10690

#Unit 10. Ecological Principles

Which of following interaction shown in following species of Paramecium?



TLS Online TPP Program

#Question id: 10691

#Unit 10. Ecological Principles

Following some attributes of biological control agent of parasite

A) General adaptability to the environment.

B) High searching capacity for hosts.

C) K selected strategy

D) Low dispersal ability.

E) Minimal time lag effects in responding to changes in host numbers.

Following above attribute is not ideal for that biological agent?

TLS Online TPP Program

#Question id: 10692

#Unit 10. Ecological Principles



TLS Online TPP Program

#Question id: 10693

#Unit 10. Ecological Principles

The diagram represents competition between species 1 and species 2 according to Lotka-Volterra model of competition


Given the conditions in the diagram, the predicted outcome of competition is


TLS Online TPP Program

#Question id: 10694

#Unit 10. Ecological Principles

Which of the following is characteristic of parasitoid/ predators?

a) consumer usually larger than resource

b) Consumer requires one host for complete development.

c) Habitat independent

d) Consumer takes long time to kill host

e) Consumer never kills their host

f) Host is free living

Which of the following is feature of parasitoid?

TLS Online TPP Program

#Question id: 10695

#Unit 10. Ecological Principles

Consumer (+) and resource (-) interactions classified by the two factor

T- Duration or intimacy of the association between individuals

Kp- Probability that resource individuals will be killed

Which of the following some statement are correct?

A-  Value of T for Grazer is greater than parasite

B-  Value of Kp for predator is greater than parasite

C-  Value of Kp for parasite is greater than parasitoid

D-  Value of T for parasitoid is greater than predator