Practice Questions

TLS Online TPP Program

#Question id: 10244

Ecological niche modelling is used to predict the distributions of species. As a general rule, which of the following statements is true?

#Unit 10. Ecological Principles

Distributions of species do not reflect the range of physical conditions that support the survival and reproduction of individuals
The more suitable the conditions for a species, the denser its population, and the greater its productivity
Changes over time in conditions such as temperature, precipitation, and salinity have not been shown to affect the distribution of marine fish species
Global climate change always results in a decline in the number of species inhabiting a given area

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TLS Online TPP Program

#Question id: 7229

#Unit 5. Developmental Biology

Two embryos were injected with bicoid at early cleavage stage. What would be the phenotypes of the resulting embryos?

TLS Online TPP Program

#Question id: 544

#Unit 1. Molecules and their Interaction Relevant to Biology

One of the enzymes involved in glycolysis, aldolase, requires Zn2+ for catalysis. Under conditions of zinc deficiency, when the enzyme may lack zinc, it would be referred to as the:

TLS Online TPP Program

#Question id: 20977

#Unit 12. Applied Biology

Transducers employed in the bulk of enzyme electrodes use which of the following principles?

TLS Online TPP Program

#Question id: 28062

#Unit 1. Molecules and their Interaction Relevant to Biology

Thermostable proteins are stable at high temperature due to

a. Vander Waals interaction

b. Ionic bond only

c. High protein’s hydrophobic core

d. high incidence of salt bridges