Most protein-encoding genes, the synonymous rate of change is considerably higher than the nonsynonymous rate because synonymous mutations are tolerated by natural selection

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#Id: 1642

#Unit 4. Cell Communication and Cell Signaling

Bare lymphocyte syndrome- Defects in class II MHC transcriptional activator called CIITA.

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#Id: 4983

#Unit 6. System Physiology – Plant

Role of phytochrome in shade perception in sun plants versus shade plants.

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#Id: 467

#Unit 2. Cellular Organization

Mutations occur at the same rate in both exons and introns, but exon mutations are eliminated more effectively by selection.

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#Id: 7698

#Unit 1. Molecules and their Interaction Relevant to Biology

                                                     Greek Key Motif

                                                        

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#Id: 5802

#Unit 7. System Physiology – Animal

TSH(thyrotropin)

Increased proteolysis of the thyroglobulin Increased activity of the iodide pump Increased iodination of tyrosine

Increased size and increased secretory activity of the thyroid cells

Increased number of thyroid cells