Which type of seismic wave travels through Earth until it reaches Earth's
surface, but cannot be felt?
A. Type 1 surface waves
B. S-waves
C. P-waves
D. Type 2 surface waves

in situ hybridization has been widely used for research applications, including clinical cytogenetics, gene mapping, tumor biology and studies of chromosome evolution.

answer:

sequence 1- deletion

                  2- duplication

                  3- insertion

                  4- substitute

                  5- inversion