Three basic types of plate boundaries can be individualized according to the characteristics of their movements. Divergent limits, convergent limits and conservative limits. The present example talks about the convergent boundaries, where the plates with each other, crustal shortening and recycling processes occur (the size of the plates decreases, both by folding and mountain formation and by a return to the mantle).
D. A silent variant near the 5' end of the TBX1 gene.
Explanation:
TBX1 gene is wild type human being. It gives instructions for making protein called T-box 1. It plays an important role in tissue formation and organs during embryonic development.