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TLS Online TPP Program

#Question id: 5006

The oxygen revolution changed Earthʹs environment dramatically. Which of the following adaptations took advantage of the presence of free oxygen in the oceans and atmosphere?

#Unit 11. Evolution and Behavior

  1. the evolution of cellular respiration, which used oxygen to help harvest energy from organic molecules

  2. the persistence of some animal groups in anaerobic habitats

  3. the evolution of photosynthetic pigments that protected early algae from the corrosive effects of oxygen

  4. the evolution of chloroplasts after early protists incorporated photosynthetic cyanobacteria

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TLS Online TPP Program

#Question id: 1851

#Unit 4. Cell Communication and Cell Signaling

Which of the following is a feature of a Salmonella-based vaccine expressing antigens from other infectious agents?
TLS Online TPP Program

#Question id: 4171

#Unit 3. Fundamental Processes

Use the table below to determine which template strand DNA sequence (written in the 5ʹ → 3ʹm direction) specifies the tripeptide with the sequence gly-ala-leu.
TLS Online TPP Program

#Question id: 31078

#Unit 2. Cellular Organization

Which of the following activity prevents unloading of cohesins by Pds5-Wapl, thereby stabilizing the cohesins on chromosomes?
TLS Online TPP Program

#Question id: 27410

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following drug mimics Sphingosine-1- phosphate (S1P)
TLS Online TPP Program

#Question id: 20028

#Unit 13. Methods in Biology

Myeloma is a cancer of the plasma cells, human a patient with myeloma, these patient produces