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TLS Online TPP Program

#Question id: 12967

Which of the following is the best explanation for why net primary productivity in terrestrial ecosystems tends to increase toward the tropics?

#Unit 10. Ecological Principles
  1. The higher species diversity in the tropics tends to increase plant growth. 
  2. There are lower metabolic costs to plant growth in the tropics.
  3. The availability of water and warm temperatures in the tropics fosters photosynthesis.
  4. The tropics have more predators that minimize herbivory.
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TLS Online TPP Program

#Question id: 15000

#Unit 8. Inheritance Biology

I do a chi square analysis of the offspring from my cross of a black mouse and albino mouse. If the black mouse was heterozygous I should have expected a 1:1 ratio, and I got 6 albino and 2 black mice. What is my chi square value?
TLS Online TPP Program

#Question id: 3500

#Unit 11. Evolution and Behavior

To call a behavior altruistic, an evolutionary biologist will have to demonstrate that

A) These behavior is decrease the individual fitness of the donor and increases the individual fitness of the recipient

B) These behavior is increases the individual fitness of both the donor and the recipient

C) Overall increase the inclusive fitness of the population

D) These behavior depend on genetic relation

Which of the following above statement is correct?
TLS Online TPP Program

#Question id: 1412

#Unit 4. Cell Communication and Cell Signaling

Which technique is the best for identifying which genes are upregulated and which are downregulated when cancer cells in culture are treated with taxol?
TLS Online TPP Program

#Question id: 23914

#General Aptitude

The great Indian Rhino has its natural home in
TLS Online TPP Program

#Question id: 17077

#Unit 12. Applied Biology

Cells lacking Thymidine kinase if introduced into HAT medium which pathways will continue for nucleotide synthesis