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TLS Online TPP Program

#Question id: 2954

Cyclin concentrations are highest during which periods of the cell cycle?

#Unit 2. Cellular Organization

  1. late G1 and early S

  2. late G2 and early M

  3. late G1 and late G2

  4. late M and late S

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TLS Online TPP Program

#Question id: 59

#Unit 1. Molecules and their Interaction Relevant to Biology

Nitrogen (N) normally forms three covalent bonds with a valence of five. However, ammonium has four covalent bonds, each to a different hydrogen (H) atom (H has a valence of one). What do you predict to be the charge on ammonium?
TLS Online TPP Program

#Question id: 932

#Unit 1. Molecules and their Interaction Relevant to Biology

Ammonia is incorporated into amino acids via which of the following?
TLS Online TPP Program

#Question id: 10237

#Unit 10. Ecological Principles

Which of the following is the most logical conclusion about the distribution of the two species of barnacle, Chthamalus and Balanus?

 
TLS Online TPP Program

#Question id: 4158

#Unit 3. Fundamental Processes

What is a reasonable number of nucleotides in a tRNA molecule?
TLS Online TPP Program

#Question id: 17263

#Unit 7. System Physiology – Animal

Heart Rate and blood pressure decrease during this stage