TLS Online TPP Program

#Question id: 11280


Ecosystem services include processes that increase the quality of the abiotic environment. Which of the following processes would fall under this category?

#Unit 10. Ecological Principles
  1. Keystone predators have a marked effect on species diversity.
  2. Green plants and phytoplankton produce the oxygen we breathe.
  3. Bees, flies, and wasps pollinate many plants.
  4. The presence of dams improves flood control
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TLS Online TPP Program

#Question id: 10755

#Unit 10. Ecological Principles

For two species A and B in competition, the carrying capacities, competition coefficients, per capita growth rate and population size are

KA = 1000          KB = 1200        α= .5    r A= .3    N1= 500         N2= 200          

According to the Lotka-Volterra model, what is growth rate of species A?

TLS Online TPP Program

#Question id: 34112

#Unit 2. Cellular Organization

A. When interphase nuclei are suspended in a solution of low ionic strength, they swell and rupture to release fibers of chromatin.
B. Individual nucleosomes can be obtained by treating chromatin with the endonuclease micrococcal nuclease
C. When chromatin is digested with MNase, the DNA is cleaved into integral multiples of a unit length can be Fractionated by gel electrophoresis reveals the “ladder”
D. With MNase more than 95% of nuclear DNA can be recovered in the form of the 200-bp ladder.

Choose true and false

TLS Online TPP Program

#Question id: 1842

#Unit 4. Cell Communication and Cell Signaling

What is the minimum percentage of children that need to be vaccinated successfully in order to achieve herd immunity to diphtheria?

TLS Online TPP Program

#Question id: 28334

#Unit 5. Developmental Biology

Which of the following statements will be most appropriate explaining the molecular basis of mutant phenotype, when mutation in first zygotic gene-Gap gene?

TLS Online TPP Program

#Question id: 4054

#Unit 3. Fundamental Processes

Phosphorylation of RNA Pol II results in the formation