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TLS Online TPP Program

#Question id: 1680

Where are the MHC class II region genes in the mouse located?

#Unit 4. Cell Communication and Cell Signaling

  1. On a different chromosome to the class I region genes

  2. On a different arm, but on the same chromosome as the class I region genes

  3. On chromosome 6

  4. Adjacent to a class I gene

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TLS Online TPP Program

#Question id: 6609

#General Aptitude

The next term in the sequence. 108 , 81, 54, ….. is 
TLS Online TPP Program

#Question id: 7178

#Unit 5. Developmental Biology

In sea urchin, the large micromeres are autonomously specified. They inherit maternal determinants that were deposited at the vegetal hemisphere of the egg; these become incorporated into the large micromeres at fourth cleavage. When an isolated animal hemisphere is combined with isolated micromeres, then what will be the result?
TLS Online TPP Program

#Question id: 11058

#Unit 10. Ecological Principles

The pufferfish, a common marine fish, has extensive spines that extend outward when it swallows water, becoming several times its normal size. This is an example of what kind of defense against predation?
TLS Online TPP Program

#Question id: 12095

#Unit 10. Ecological Principles

It is now thought that the atmosphere of the primitive Earth was composed largely of carbon dioxide, nitrogen, and water vapor. The composition of certain iron-containing minerals suggests that the carbon dioxide began to be replaced by oxygen about 2 billion years ago.   Which of the following is the best explanation for the change in atmospheric composition?
TLS Online TPP Program

#Question id: 4260

#Unit 3. Fundamental Processes

Which of the following occur(s) when the eukaryotic translational machinery encounters the TAG codon?