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TLS Online TPP Program

#Question id: 17806

Which of the following is not a characteristic that distinguishes gymnosperms and angiosperms from other plants? 

#Unit 9. Diversity of Life Forms
  1. alternation of generations
  2. ovules 
  3. integuments 
  4. pollen 
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TLS Online TPP Program

#Question id: 32320

#Unit 1. Molecules and their Interaction Relevant to Biology

The standard free-energy change for given reactions, using the equilibrium constants given for the reactions at 25°C and pH 7.0 will be
TLS Online TPP Program

#Question id: 26983

#Unit 10. Ecological Principles

Plant life histories based on a model in which stress, disturbance, and competition are the important selective factors.
TLS Online TPP Program

#Question id: 4953

#Unit 11. Evolution and Behavior

Several scientific laboratories across the globe are involved in research concerning the origin of life on Earth. Which graph below, if the results were produced abiotically, would have the greatest promise for revealing important information about the origin or Earthʹs first genetic system?
TLS Online TPP Program

#Question id: 847

#Unit 1. Molecules and their Interaction Relevant to Biology

A proposed pathway for the action of E.coli chaperonins  are groEL and groES.groEL exist in trans and cis structure transferring with its bound ATP now become the cis ring once the groES  bound to it ATP hydrolysis takes place and improperly folded protein get properly folded, total number of  ATP molecules are required to per folding cycle;
TLS Online TPP Program

#Question id: 12183

#Unit 1. Molecules and their Interaction Relevant to Biology

Following statements are regarding to regulation of S phase and mitotic cyclin levels in budding yeast.
A. In late anaphase, the anaphase-promoting complex (APC/C) ubiquitinylates S phase and mitotic cyclins.
B. In late anaphase, the anaphase-promoting complex (APC/C) phosphorylates S phase and mitotic cyclins.
C. During exit from mitosis and G1, Cdh1 is dephosphorylated and active; during S phase and mitosis, Cdh1 is phosphorylated and dissociates from APC/C, and APC/C becomes inactive.
D. During exit from mitosis and G1, Cdh1 is phosphorylated and active; during S phase and mitosis, Cdh1 is dephosphorylated and dissociates from APC/C, and APC/C becomes inactive.
E. The G1/S phase CDKs, which themselves are not APC/CCdh1 substrates, phosphorylate Cdh1 at the G1–S phase transition.
F. The G1/S phase CDKs, which themselves are not APC/CCdh1 substrates, ubiquitinylates Cdh1 at the G1–S phase transition.
Which of the following combination is correct?