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TLS Online TPP Program

#Question id: 9193

Which of the following best describes the consequences of White-band disease in Caribbean coral reefs?

#Unit 9. Diversity of Life Forms
  1. Staghorn coral has been decimated by the pathogen, and Elkhorn coral has taken its place.
  2. Key habitat for lobsters, snappers, and other reef fishes has improved.
  3. Algal species take the place of the dead coral, and the fish community is dominated by herbivores.
  4. Algal species take over and the overall reef diversity increases due to increases in primary productivity.
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TLS Online TPP Program

#Question id: 12238

#Unit 10. Ecological Principles

The mussel Mytilus edulis thrives in saline habitats, in both the highly salty seawater of tidal zones and the less salty estuaries. This results in two kinds of populations: one adapted to the higher salt concentrations of the tidal zone, and one adapted to the lower salt concentrations of the estuary. It has been found that the more salt-tolerant populations have high frequencies of an allele that produces an enzyme involved in maintaining osmotic equilibrium. Conversely, estuarine mussels having the same enzyme seem to be disfavoured and have a much higher death rate than mussels without the allele. Adult estuarine populations do have lower frequencies of this allele. Each spring, large numbers of larvae from  the salty habitats pour into the estuaries.
The invasion of the seawater larvae would be expected to facilitate change in the genetic structure of the estuarine population by a process called
TLS Online TPP Program

#Question id: 24108

#General Aptitude

His neighbor’s superficial remarks trivialized the property line dispute and infuriated Malcolm.
TLS Online TPP Program

#Question id: 23315

#General Aptitude

A child is a back -bencher and is unable to watch the black-board clearly, therefore he stands, see and sit repeatedly. It disturbs the nearby classmates, what inference will you draw with reference to the student's difficulty?
TLS Online TPP Program

#Question id: 5078

#Unit 5. Developmental Biology

A human blastomere is:
TLS Online TPP Program

#Question id: 5370

#Unit 8. Inheritance Biology

The pedigree below represents the inheritance of an X link recessive trait. The probability of effected child in fourth generation of family?