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TLS Online TPP Program

#Question id: 11379

Which of the following is NOT a prediction arising out of Wilson-MacArthur's -Theory of Island Biogeography?

#SCPH06 I Botany
  1. The number of species on an island should increase with its size/area.
  2. The number of species should decrease with increasing distance of the island from the source pool.
  3. Composition of species should be same over time
  4. Species richness on an island should be related to its average distance to the neighbouring islands
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TLS Online TPP Program

#Question id: 10778

#SCPH05 I Biotechnology

Essential oils are the mixture of volatile,
TLS Online TPP Program

#Question id: 1054

#SCPH28 | Zoology

During attachment of phage to E. coli, the phage
TLS Online TPP Program

#Question id: 15618

#SCPH28 | Zoology

Wild type E. coli metabolizes the sugar lactose by expressing the enzyme ß-galactosidase. You have isolated a mutant that you call lac1-, which cannot synthesize ß-galactosidase and cannot grow on lactose (Lac-). During an condition  isolate  a second Lac– mutation, which you designate lac2-. Using P1 phage on this strain and use the resulting phage lysate to infect the lac2- strain, selecting for   Kanr   transductants. In this case, all 100   Kanr   transductants that are examined are Lac–. What does this result tell you about the relationship between the lac1- and lac2- mutations?
TLS Online TPP Program

#Question id: 10584

#SCPH06 I Botany

The logistic equation above is used to describe the rate of change of a population, N, with time, t, where r is the intrinsic rate of increase and K is the carrying capacity. Which of the following statements is true for this equation?
TLS Online TPP Program

#Question id: 11143

#SCPH28 | Zoology

In a resting potential, an example of a cation that is more abundant as a solute in the cytosol of a neuron than it is in the interstitial fluid outside the neuron is ________.