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TLS Online TPP Program

#Question id: 12538

Some global warming models predict that, if permafrost in the tundra regions in the northern hemisphere melts, atmospheric CO2  levels will increase. Which of the following statements best explains this prediction?

#Unit 10. Ecological Principles
  1. The heat released by  the melting  of  the ice  on  such a  vast scale will  cause atmospheric CO2  saturation levels to increase.
  2. All of the tundra producers will die if the permafrost melts, and because the tundra regions are vast in the northern hemisphere the tundra plants will not take part in photosynthetic removal of atmospheric CO2
  3. CO2 tied up in the permafrost ice will be released during a thaw.
  4. All  of  the  undecayed organic material would  be  subject to  decomposition following  a  thaw, which  would lead to incredible increase in global cellular respiration, and add to atmospheric CO2
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TLS Online TPP Program

#Question id: 28665

#Unit 2. Cellular Organization

In which of the following phase DNA-bound G1 cohesins Convert into cohesive complexes by cohesin acetyl transferases (CoATs) ?
TLS Online TPP Program

#Question id: 28666

#Unit 2. Cellular Organization

 Which of the following cohesin-associated factor involves to stabilization of cohesins in vertebrates?
TLS Online TPP Program

#Question id: 28667

#Unit 2. Cellular Organization

Which of the following factors that involve to the activation of mitotic CDKs?
TLS Online TPP Program

#Question id: 28668

#Unit 2. Cellular Organization

In Yeast cells with a defective wee1+ gene activate mitotic CDKs prematurely and cause__
TLS Online TPP Program

#Question id: 28669

#Unit 2. Cellular Organization

Fission yeast cells carrying a CDK1 mutation in which the tyrosine-15 residue is replaced by phenylalanine, what will cause from this mutation?
a) Shows larger than normal cells
b) Shows smaller than normal cells
c) allows the phosphorylation of phenylalanine and normal cell activation are seen
d) premature mitotic CDK activation and entry into mitosis
TLS Online TPP Program

#Question id: 28670

#Unit 2. Cellular Organization

In fission yeast cells carrying a CDK1 mutation in which the tyrosine-15 residue is replaced by other amino acid which is?