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TLS Online TPP Program

#Question id: 9248

Which of the following is a consequence of biological magnification?

#Unit 9. Diversity of Life Forms
  1. Toxic chemicals in the environment pose greater risk to top-level predators than to primary consumers.

  2. Populations of top-level predators are generally smaller than populations of primary consumers.

  3. The biomass of producers in an ecosystem is generally higher than the biomass of primary consumers.

  4. Only a small portion of the energy captured by producers is transferred to consumers.
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TLS Online TPP Program

#Question id: 10245

#Unit 10. Ecological Principles

Which of the following exemplifies an evenly spaced distribution?
TLS Online TPP Program

#Question id: 11988

#Unit 10. Ecological Principles

If mayflies lay eggs on roads instead of in water, this behavior could involve which of the following? 
TLS Online TPP Program

#Question id: 7189

#Unit 5. Developmental Biology

Following statements were made regarding vulval development in C. elegans:

A. The formation of the anchor cell is mediated by lin-12, the C. elegans homologue of the Notch gene.

B. The formation of the anchor cell is mediated by lin-12, the C. elegans homologue of the Delta gene.

C. The lin-12 gene needs to function only in that cell destined to become the uterine precursor cell.

D. Presumptive Anchor cell also need lin-12.

E. Two cells originally synthesize both the signal for uterine differentiation (the LAG-2 protein, homologous to Delta) and the receptor for this molecule (the LIN-12 protein, homologous to Notch.

Which one of the following options represents a combination of correct statements?
TLS Online TPP Program

#Question id: 19558

#Unit 12. Applied Biology

Out of the three domains in cry proteins, domain II functions in 
TLS Online TPP Program

#Question id: 28911

#Unit 4. Cell Communication and Cell Signaling

JNK and ROCK are responsible for___