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TLS Online TPP Program

#Question id: 4340

There is a mutation that is found in E. coli in the repressor that results in a molecule known as a super-repressor because it represses the lac operon permanently. Which of the following characteristics would you expect to observe in such a mutant?

#Unit 3. Fundamental Processes

  1. It cannot bind to the operator.

  2. It cannot make a functional repressor.

  3. It cannot bind to the inducer.

  4. It makes a repressor that binds CAP.

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TLS Online TPP Program

#Question id: 3456

#Unit 11. Evolution and Behavior

Which scientist suggested that human social behavior may have a genetic basis?
TLS Online TPP Program

#Question id: 11418

#Unit 10. Ecological Principles

Use the following diagram of five islands formed at around the same time near a particular mainland, as well as MacArthur and Wilson's island equilibrium model principles


Which island would likely have the lowest extinction rate?
TLS Online TPP Program

#Question id: 5446

#Unit 8. Inheritance Biology

In a plant, height is control by three quantitative trait loci.  Each dominant additive allele is contributing 5 cm height in plant. Maximum expected plant height is 50 cm. What is minimum expected height? 
TLS Online TPP Program

#Question id: 10690

#Unit 10. Ecological Principles

Which of following interaction shown in following species of Paramecium?
TLS Online TPP Program

#Question id: 1267

#Unit 4. Cell Communication and Cell Signaling

Multiple integrin forms arise from