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TLS Online TPP Program

#Question id: 8775

Use the following information to answer the question. Paulinella chromatophora is one of the few cercozoans that is autotrophic, carrying out aerobic photosynthesis with its two elongated "chromatophores." The chromatophores are contained within vesicles of the host cell, and each is derived from a cyanobacterium, though not the same type of cyanobacterium that gave rise to the chloroplasts of algae and plants. A crucial photosynthetic gene of the cyanobacterium that gave rise to the chromatophore is called psaE. This gene is present in the nuclear genome of the cercozoan, but is not in the genome of the chromatophore. This is evidence of ________.

#Unit 9. Diversity of Life Forms
  1. reciprocal mutations in the chromatophore and nuclear genomes
  2. horizontal gene transfer from bacterium to eukaryotes
  3. genetic recombination involving a protist and an archaean
  4. transduction by a phage that infects both prokaryotes and eukaryotes
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TLS Online TPP Program

#Question id: 29060

#Unit 10. Ecological Principles

Find out the correct explanation of adaptation for osmoregulation in freshwater fish?
TLS Online TPP Program

#Question id: 29061

#Unit 10. Ecological Principles

Ecological niche modelling is termed as
TLS Online TPP Program

#Question id: 29062

#Unit 10. Ecological Principles

Ecological envelope is termed as____
TLS Online TPP Program

#Question id: 29063

#Unit 10. Ecological Principles

Which of the following statement correct define the Proportional similarity values ?
a) less than 0.70 have been taken to indicate competitive exclusion
b) greater than 0.70 indicate possible coexistence
c) less than 0.70 have been taken to indicate possible coexistence
d) greater than 0.70 indicate competitive exclusion
TLS Online TPP Program

#Question id: 29064

#Unit 10. Ecological Principles

Regarding the geographic range of a species, which of the following statements is true?
TLS Online TPP Program

#Question id: 29065

#Unit 10. Ecological Principles

Ecological and crude density of fish prey in related with predator. Water level is drop during the dry season and further increases in a rainy season. Following some observation effect are present on their density
A) Ecological density is not change with respect to water level       
B) Ecological density is gradually decrease with low water level
C) Crude density increases over ecological density during low water level             
D) Ecological density increases while crude density decreases during low water level
E) There is no effect on crude density with seasonal water level

Which of the following above observation is correct?