Maximum how many numbers of hydrogen bond can be form by H2O molecule ?

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#Question id: 15519

#XL - S Microbiology

Double-negative selection perform in between cortex to medulla movements in four stages DN1-DN4 based on the presence or absence of other cell surface molecules, In presence of which genotype cell loses the fate of other lymphoid cell?

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#Question id: 15520

#XL - S Microbiology

Double-negative (DN) thymocytes that have successfully rearranged their TCRβ chains are valuable, and are identified and expanded via a process known as 

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#Question id: 15521

#XL - S Microbiology

Rearrangement of the β, γ, and δ loci begins during the

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#Question id: 15524

#XL - S Microbiology

The bulk of DP thymocyte death (~95%) occurs among thymocytes that fail positive selection because 

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#Question id: 15525

#XL - S Microbiology

In the instructive model, TCR/CD4 and TCR/CD8 coengagement generates unique signals, if a thymocyte randomly generated a TCR with an affinity for MHC Class I. which thymocyte would bind with MHC class I?

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#Question id: 15527

#XL - S Microbiology

CD4 and CD8 T cells leave the thymus and enter the circulation as resting cells in which stage of the cell cycle?